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M.W.
2025-09-04 12:35:15
This is a great kit of minerals to represent 9 of the levels of the Mohs Hardness Scale. Each mineral is a good size, at least 1 inch in size and comes individually contained in labeled zip bags. A information sheet is included as well along with a dark and light streak place approx. 1" wide by 3" in length. Well worth the price.
Paula Henley
2025-08-27 17:33:25
The rock samples provided were helpful in developing the basic knowledge of rock identification and I like the quality. I would recommend this product.
Professional Tester
2025-08-17 12:59:27
For the price and purpose this was a perfect set. Used this for meeting one of the cub scout requirements for Mohs rock hardness. Piece came in labeled bags and the scouts were able to successfully organize the rocks by hardness. Only recommendation/helpful hint is to lay the rocks with their bags and take a picture so you know which rock goes in which bag when you have removed them.
m jacobson
2025-08-13 17:10:19
This is a great kit for the price. Most kits with labeled metal scratchers are over $100.I was surprised to open this kit and find just a bag of minerals. I expected them to be labeled, so I would know what each one is.I printed the picture from the Amazon seller's description and figured out what is what but if I was a total beginner, even that could be difficult.Although I would prefer a box with 9 separate labeled spots to hold the 9 mineral specimens,This kit will suit me just fine.I'm glad I bought it.
Melody McCullough
2025-08-02 15:56:07
Students loved being able to touch and test the various specimens
Ricky_Riccardo
2025-07-26 11:11:19
This is a nice and inexpensive Mohs Hardness Test kit. The samples are very nice and about 1.0-1.5 in rough cut stones/minerals. Each nicely labeled in little bags. A hardness sheet is also enclosed along with 2 streak plates. I recommend.
DJ
2025-06-22 13:49:16
Zero information, zero labeling of the different stones, zero instructions on how to use. What a waste of money.
Lois
2025-05-25 13:22:21
These were perfect mineral examples for the hardness test.
Robert Cook
2025-04-23 11:10:44
Streak Plates are not as advertised. Not porcelain. Mineral samples for hardness are not labelled.
M.W.
2025-04-20 14:37:30
This is a great kit of minerals to represent 9 of the levels of the Mohs Hardness Scale. Each mineral is a good size, at least 1 inch in size and comes individually contained in labeled zip bags. A information sheet is included as well along with a dark and light streak place approx. 1" wide by 3" in length. Well worth the price.
Paula Henley
2025-03-09 11:00:16
The rock samples provided were helpful in developing the basic knowledge of rock identification and I like the quality. I would recommend this product.
Professional Tester
2025-02-16 15:13:15
For the price and purpose this was a perfect set. Used this for meeting one of the cub scout requirements for Mohs rock hardness. Piece came in labeled bags and the scouts were able to successfully organize the rocks by hardness. Only recommendation/helpful hint is to lay the rocks with their bags and take a picture so you know which rock goes in which bag when you have removed them.
m jacobson
2025-01-23 21:23:14
This is a great kit for the price. Most kits with labeled metal scratchers are over $100.I was surprised to open this kit and find just a bag of minerals. I expected them to be labeled, so I would know what each one is.I printed the picture from the Amazon seller's description and figured out what is what but if I was a total beginner, even that could be difficult.Although I would prefer a box with 9 separate labeled spots to hold the 9 mineral specimens,This kit will suit me just fine.I'm glad I bought it.
Melody McCullough
2025-01-16 15:46:16
Students loved being able to touch and test the various specimens
Ricky_Riccardo
2025-01-08 17:47:32
This is a nice and inexpensive Mohs Hardness Test kit. The samples are very nice and about 1.0-1.5 in rough cut stones/minerals. Each nicely labeled in little bags. A hardness sheet is also enclosed along with 2 streak plates. I recommend.
DJ
2025-01-07 18:56:31
Zero information, zero labeling of the different stones, zero instructions on how to use. What a waste of money.
Lois
2024-12-21 18:50:44
These were perfect mineral examples for the hardness test.
Robert Cook
2024-12-09 15:30:57
Streak Plates are not as advertised. Not porcelain. Mineral samples for hardness are not labelled.
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