Moh's Hardness Test Kit 11 Piece Mineral Hardness Kit Include 9 Rock Mineral Specimens and 2 Unglazed Porcelain Streak Plates for Exploring Identifying Studying Geology and Earth Science

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.

I like that each stone is in its own marked bag. Only thing I would like different is that the bags would be transparent instead of white.

These were perfect mineral examples for the hardness test.

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.

This is such an interesting package. Its real first hand knowledge about minerals, how they feel, what they look like. Its really invaluable knowledge. Great product!

no assembly nor operating instructions

Zero information, zero labeling of the different stones, zero instructions on how to use. What a waste of money.

The rock samples provided were helpful in developing the basic knowledge of rock identification and I like the quality. I would recommend this product.

Streak Plates are not as advertised. Not porcelain. Mineral samples for hardness are not labelled.