It usually has a yellowish to orangish brown color but can be white, greenish, bluish, or black. It has a Mohs hardness of 6 with perfect cleavage, so it is best used where it will not suffer abrasion or impact.Īmber is a fossil resin secreted by ancient trees. For that reason, it is common in jewelry.Īmazonite is a trade name given to a light green to bright green variety of microcline feldspar. ![]() It is a popular gem cut into cabochons, beads, and ornamental objects.Īlmandine garnet, also known as "almandite," is an iron-rich, red-to-purple garnet that is geologically very common and typically sells on the more affordable side of the garnet price range. It sometimes has a fibrous texture that produces a strong cat's-eye.Īgate is a cryptocrystalline quartz that is translucent and patterned with bands, plumes, dendrites, or inclusions that produce a colorful, interesting appearance. ![]() ![]() Actinolite is green to grayish green mineral of the amphibole group found in metamorphic rocks.
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