Mineral Hardness Test Kit - Education Set sample these form in limestone-hosted systems

these form in limestone-hosted systems where mineral-rich fluids move through fractures and open spaces underground

so I guess that's what it is now called

Cylinder Shape

and attached chain

View the sandblasted specimens at this link: https://rubblerockandgem

Mineral Hardness Test Kit - Education Set sample these form in limestone-hosted systemsDescription: This Mohs Hardness Test Kit is designed for straightforward mineral identification using scratch testing. By comparing a specimen against known hardness points on the Mohs scale, you can quickly narrow down what it could be based on resistance to scratching. A key feature is the streak plate, which reveals the true powdered color of a mineraloften more reliable than surface color, especially for metallic specimens. Used together, hardness