Mineralogy & Gemology Articles - Page 2 — Knoji
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Identifying the treasures of the earth – precious metals, gemstones, and crystals, birthstones, and geologist Friedrich Mohs, who devised a scale to define hardness of minerals.
Published by Tel Asiado 84 months ago in Mineralogy & Gemology | +21 votes | 6 comments
Facts about pink tourmaline, the alternative birthstone of October
Published by Dawn Merrow 85 months ago in Mineralogy & Gemology | +0 votes | 1 comments
Facts about March's alternative birthstone, bloodstone quartz
Published by Dawn Merrow 85 months ago in Mineralogy & Gemology | +0 votes | 2 comments
The main source of phosphorus, used as fertilizer, is the mineral apatite, found in some sedimentary rocks, and also in deposits of the dropping (guano) of bats and birds.
Published by Mr Ghaz 86 months ago in Mineralogy & Gemology | +5 votes | 1 comments
The Gold Cube will recover 90% of the gold found in sand. It is especially good at recovering small flat flakes of gold the commonest varuety,
Published by John Carter 86 months ago in Mineralogy & Gemology | +3 votes | 1 comments
This describes the gemstone Benitoite.
Published by John Carter 87 months ago in Mineralogy & Gemology | +7 votes | 1 comments
This describes the copper carbonate mineral azurite and its use in pigments and jewelry.
Published by John Carter 87 months ago in Mineralogy & Gemology | +7 votes | 1 comments
Aguamarine is the birthstone for March enjoys a worldwide distribution. Aquamarine and its cousins can be found in most pegmatites as a uncommon mineral.
Published by John Carter 88 months ago in Mineralogy & Gemology | +9 votes | 4 comments
Apatite is a whole family of minerals including gems. A common place where you can find apatite is in your teeth and bones.
Published by John Carter 88 months ago in Mineralogy & Gemology | +5 votes | 0 comments
This is about the gem andradite a beautiful stone in the garnet family. Andradite comes in many colors the brilliant green stone called dementoid rivals diamond' price.
Published by John Carter 88 months ago in Mineralogy & Gemology | +3 votes | 1 comments
Ametrine is a gemstone from Bolivia that is amethyst colored on one end and citrine colored on the other. The bicolor of this gemstone is caused by differential heat across the length of its crystal.
Published by John Carter 88 months ago in Mineralogy & Gemology | +6 votes | 1 comments
This tells about almandine garnets, how they occur and where to find them.
Published by John Carter 88 months ago in Mineralogy & Gemology | +3 votes | 2 comments
This story is about the beautiful green stone Amazonite a variety of feldspar used as a gem. The stone gets its green color from a small amount of lead in its crystal structure.
Published by John Carter 89 months ago in Mineralogy & Gemology | +6 votes | 0 comments
This article describes the amethyst. This is a member of the quartz family of gemstones that is colored purple.
Published by John Carter 89 months ago in Mineralogy & Gemology | +4 votes | 1 comments
Alexandrite is one of the most valuable gems found on Earth. It is a variety of the mineral chrysoberyl displaying red or green in different kinds of light.
Published by John Carter 89 months ago in Mineralogy & Gemology | +5 votes | 2 comments
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