The "garnet" sample shown here is actually sphalerite
@EarthRocks2 жыл бұрын
Sphalerite has a similar crystal form to garnet (dodecahedron), so they can look similar, but sphalerite has cleavage planes, while garnet does not. The true test is hardness. Sphalerite is 3.5-4 on the hardness scale, while garnet is 8.