Digging out a large room is the worst way to find diamonds by far - on average, only about 0.12% of blocks between layers 5-12 are diamond ore, meaning that you'd mine an average of 833 blocks per ore found if you mined every block. For comparison, mining 1x2 tunnels spaced at least 6 blocks apart averages 1.7% of mined blocks being diamond ore, or about 59 blocks per ore found - an efficiency which is about 14 times greater, both in terms of tool wear and time (since you spend less time mining):
I have not tested this myself but my experience is close to what the Wiki shows for a spacing of 3, about 0.9% of mined blocks being diamond ore (this also suggests that you actually miss very little by using a wider spacing, and in either case there is usually little point in trying to mine out every last diamond ore from an area). For example, I found 91 diamond ore out of about 10000 blocks mined from the following mine:
That said, I find it suspicious that you haven't found a single diamond out of what has to be thousands of blocks mined; I've never had any issues finding diamonds (playing in 1.6.4 or modded versions with the same density as 1.6.4; the world above had the same distribution/density but everything was 7 layers deeper down, I also mined below lava level mainly to find a much rarer than diamond ore; if anything, the fact I was standing on bedrock (one layer at y=0) should have reduced rates. Conversely, layer 11 is actually a bit too high for optimal efficiency since diamond becomes rarer above layer 12 and you'll benefit less from ores found in the ceiling; the most optimal layers would be 8-9 (feet position); of course, you do have to deal with lava which is why layer 1 is most popular).
Here is another mine I made; this was from a world where I used diamond gear so the amount I mined reflected how much I had to mine to find enough diamonds (around half a stack is enough for all of my "caving gear" plus a few spares for repairs in the unlikely event I don't find any by the time I have to repair something; it is very rare to not find any diamond in a play session while caving, even with only 0.5% of all mined ores being diamond):
Also, while nobody else has confirmed it, somebody reported that there was still less diamond in a 1.13.1 as compared to 1.12.2 (the 1.13 snapshots had a bug that made ores much rarer):
It'd be interesting to know how much of other ores you've found (e.g. statistics, assuming that you didn't do much mining outside of what you've showed), and whether they are consistent with the figures given for 1.12.2 or 1.13.1 (e.g. the ratio of iron to gold below layer 32 should be around 5:1, while the above suggests it is nearly twice as common in 1.13.1, which also can't be due to a mesa biome since they used the same seed and area and gold was added to mesas in 1.10). Due to the way ores are generated it is also highly improbable that there would be such large variations over even such a small area (about 128 chunks); the number of attempts and general vein size are fixed for each chunk (I analyzed several similar areas of a 1.6.4 world and the min-max variation was around 20% at the most, even between regions of very low vs very high cave density, with more variation than is possible since 1.7).
Much respect about your big response to all of this and you knowledge.
I had this bad luck first time, that made me confused, because i really don't remember diamonds being that rare. This was just a really bad luck mining. I was brenchmining, after a while when i was doing that type of mining, i got confused about not finding any diamonds. (I do brenchmining where i mine after 2 blocks) So i decided to mine it all out so i wouldn't have that stupid feeling that i missed some diamonds only by 1 stone block.
Sadly i can't give much information about the other ores i have found after mining out that area because i just ended a small mining session continuing that mine, after some blocks i found a cave and just when i looked up there were some diamonds. After this session i found 20 diamond ores, but they all were found just by walking down the caves and mineshafts.
While mining that area out, there were also some lava cav'ish caves, and there also wasn't any diamonds there considering that it was a larger area already cleared out and no diamond ores were seen.
Will read some information on that wiki page u gave me, went trough that article and there is a lot of information that can come in handy, will also look after mining under [Y=11].
ps. Why did that bug acticle said, that it has been resolved, but nothing has changed?
In spite of having a lot of respect for TheMasterCaver's knowledge of Minecraft world generation I think it must be just bad luck.
I used command blocks to remove (almost) everything except ores and bedrock up to level 14 in a world created with your seed,
the first picture is taken from the same place as your second picture and the second is taken from about halfway down the hallway showing a closeup up the diamonds in the general area of your tunnel, there is also a vein off to the left of where your picture was taken, all of those veins are either higher or lower than your hallway except the single diamond ore off to the right.
The third screenshot is from under world spawn and also illustrates how large the gaps are between the diamond veins and how easy it is to miss them.
Thanks, after these screenshots i feel better to be honest.. From the first hand i felt like diamond ores have just been... deleted from my world or that world is just broken, but not. I guess i just need a better way to mine and need to find another Y level that fits perfect for diamonds.
Thank you for your time looking into that world and sharing your find!
That just looks like bad luck. I wouldn't be too surprised for an area of that size to not contain any diamond ores. They are quite rare, and sometimes random rarity just generates a big strip of no luck for a long distance. Diamond ores don't appear exactly "every 64 blocks" or something, after all.
I have ben playing minecraft for a really long time and this is the first time that i see them that rare.. I think i might just experience bad luck in minecraft for the first time mining for diamonds.
There should be an average of 1 diamond vein per chunk, and y=11ish is the strong middle of the diamond spawn range. This makes it highly unlikely that you would go without any diamonds exposed the entire length of the mine.
Can't tell from the screenshot, but what version are you playing in? If this is a modpack, it's possible that the ranges for all ores have been changed or that the ores themselves were removed from worldgen (only to be found via virtual machine mining/processing automation or only found in other dimensions). If this is a custom world, perhaps the spawn ranges were changed?
I mine diamonds only at y=11 and i had a really good luck finding diamond ores at that level.
This is vanilla 1.14.4 version, and i don't remember changing anything in the settings of the world, just generated default style of the world, nothing that ordinary.. Yes, other ores were found, like iron, coal, lapis and redstone, but none diamond ore spawns.
This just looks like bad luck to me too. I have had branch mines that were that close together and not found any diamonds for that length of mine. Then I've had another set of branch mines where I've found 27 diamonds in two branches. My only advice is to keep digging.
I will try to keep mining the same way and at the same mine, just going to make it bigger from all sides time by time, if i won't get any diamond ore spawns, i will update this post, because this really just seems weird to me.
I always mine like that and i have a good luck finding diamonds this way, well it was on the older worlds and servers i played.
E: Okay, this is getting funny from one point, i have dig out it bigger and still nothing but other ores just not diamonds..
Seed is [7477695583733432086] and the world was generated in 1.14.4 vanilla.
Started new minecraft world, went mining at y=11 [y=11 shows on F3].
First thing that i did was strip mining, and then i started to connect all the mined out areas and mine out one big area.. I am suprised that none of the diamond ores were in the way.. I don't remember them that rare..
Is there something wrong on my world with diamond spawn rates or is it just bad luck?
Thanks.
Attachment contains a picture of the mined out area.
How someone should contact you: discord - stiffidy#8865
How long you've been playing Minecraft: I don't know, but i remember that there wasnt no need to eat food to stay alive, lets just say there wasnt no hunger. I was little and dont really remember what version was that. But been playing it on and off.
Some things that you like to do on the game: I would like to play vanilla survival, i like building, mining and exploring the world. Not really into pvp'ing.
Any additional things you want to say: Communication is not really needed, i mean, voice talk, but would be nice if we could have a good night talk and calmly play minecraft together. memers are also an bonus, if you are one. hihi.
last try, cuz this forum is shuttin down soon to read only soo, trying my luck last time here.
I dont know if you are still accepting those, who are under 18, but im 16..
I would just like to play in a long lasting community, where there are no progress lost in over a time (full restarts) and people are active, and don't get interest lost in a couple of weeks.
How someone should contact you: discord - stiffidy#8865
How long you've been playing Minecraft: idk how long it was, but there wasn't an hunger bar... sooo its a LOONG time.
Some things that you like to do on the game: play survival, vanilla mostly, i like calm and creative, survivalish gameplay and also some pvp, but only on servers, where its supposed to go down like that.. im kind of looking for a friend that would like to play with me some games, idk, maybe even join theyr realm with other guys and just play mc all together. would really like to talk in the same time on discord or ts3...
Any additional things you want to say: i kind of said this one question up
1
OptiFine for 1.16.1 is so far 7% done.
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not gonna lie, but that picture looks like a mess
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i personally dont throw anything away, i keep everything in chests, sometimes i sort it, but that dosnt mean throwing someting in lava, cactus, etc.
I see every item and block in the game as something useful one day.
I dont care how much chests "trash" require, but im still giving every block, item i pick a chest to live in.
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Much respect about your big response to all of this and you knowledge.
I had this bad luck first time, that made me confused, because i really don't remember diamonds being that rare. This was just a really bad luck mining. I was brenchmining, after a while when i was doing that type of mining, i got confused about not finding any diamonds. (I do brenchmining where i mine after 2 blocks) So i decided to mine it all out so i wouldn't have that stupid feeling that i missed some diamonds only by 1 stone block.
Sadly i can't give much information about the other ores i have found after mining out that area because i just ended a small mining session continuing that mine, after some blocks i found a cave and just when i looked up there were some diamonds. After this session i found 20 diamond ores, but they all were found just by walking down the caves and mineshafts.
While mining that area out, there were also some lava cav'ish caves, and there also wasn't any diamonds there considering that it was a larger area already cleared out and no diamond ores were seen.
Will read some information on that wiki page u gave me, went trough that article and there is a lot of information that can come in handy, will also look after mining under [Y=11].
ps. Why did that bug acticle said, that it has been resolved, but nothing has changed?
Thanks for your response!
Thanks, after these screenshots i feel better to be honest.. From the first hand i felt like diamond ores have just been... deleted from my world or that world is just broken, but not. I guess i just need a better way to mine and need to find another Y level that fits perfect for diamonds.
Thank you for your time looking into that world and sharing your find!
0
I have ben playing minecraft for a really long time and this is the first time that i see them that rare.. I think i might just experience bad luck in minecraft for the first time mining for diamonds.
I mine diamonds only at y=11 and i had a really good luck finding diamond ores at that level.
This is vanilla 1.14.4 version, and i don't remember changing anything in the settings of the world, just generated default style of the world, nothing that ordinary.. Yes, other ores were found, like iron, coal, lapis and redstone, but none diamond ore spawns.
I will try to keep mining the same way and at the same mine, just going to make it bigger from all sides time by time, if i won't get any diamond ore spawns, i will update this post, because this really just seems weird to me.
I always mine like that and i have a good luck finding diamonds this way, well it was on the older worlds and servers i played.
E: Okay, this is getting funny from one point, i have dig out it bigger and still nothing but other ores just not diamonds..
Seed is [7477695583733432086] and the world was generated in 1.14.4 vanilla.
0
Started new minecraft world, went mining at y=11 [y=11 shows on F3].
First thing that i did was strip mining, and then i started to connect all the mined out areas and mine out one big area.. I am suprised that none of the diamond ores were in the way.. I don't remember them that rare..
Is there something wrong on my world with diamond spawn rates or is it just bad luck?
Thanks.
Attachment contains a picture of the mined out area.
0
last try, cuz this forum is shuttin down soon to read only soo, trying my luck last time here.
0
I dont know if you are still accepting those, who are under 18, but im 16..
I would just like to play in a long lasting community, where there are no progress lost in over a time (full restarts) and people are active, and don't get interest lost in a couple of weeks.
Im getting bored playing singleplayer alone.
ign - stiffidy
0