http://treasurequestmining.com/treasure-identification/gems/ WebTo identify your rock, first take note of its physical properties like color, luster, banding, layering, and grain size. Next, test for hardness and weight by running simple tests. Finally, compare the properties of your rock to those of known rock types while looking for other identifying characteristics. Identifying and classifying rocks can ...

List of Gemstones: Precious and Semi-Precious Stones

WebIt will almost always be a brown with an older stone. The other most common mineral that you will find sticking to your magnet while hunting is Magnetite. It will make black colored powder and the stone will be black as well. It will often show flat crystal surfaces with dull black luster when found in nodules. WebNames of the black gemstones list. Among the jewelry black crystals, precious and semi-precious stones of this color are the following list of black colored gemstones, black crystal names: Agate. Cat’s Eye … chrysanthemum pink crest

13 Different Types of Purple Rocks and Minerals (With Pictures)

http://www.gemsofafricagallery.com/stone-types.html WebAmethyst is the birthstone for February. Apatite – This is a phosphate mineral found in a variety of intense colors including purple, green, blue, white, and red. Gem quality apatite can be found in the United States. … WebGreen aventurine was first discovered in the 18th century in India, which is where the majority of this stone is mined from. Aventurine also comes in blue, white, gray and … derwood from bewitched