Polished Stone Identification - Pictures of Tumbled Rocks - name of a striped gem


Alphabetical List of Precious and Semiprecious Gemstones name of a striped gem

Is the gem quality variety of the mineral olivine. Origin of name either the Arabic word faridat meaning "gem" or the French word peritot meaning "unclear". Peridot is one of the few gem stones that come in only one colour. The depth of green depends on how much iron is contained in the crystal structure.

Do you like your jewelry to have red stones in it? Red is an eye-catching color, and red gems draw attention to their wearer, whether the red gemstones come as pendants to necklaces, bracelets and earrings, or red beads weaved amongst an intricate piece of beadwork.

Peridot is the name given to gem-quality olivine, which has the chemical formula (Mg, Fe) 2 SiO 4. This green silicate mineral gets its color from magnesium. While most gems occur in different colors, peridot is found only in shades of green. It has a Mohs hardness of around 6.5 to 7 and belongs to the orthorhombic crystal system.

Chrysocolla is a copper ore, like cuprite and chalcopyrite, that occurs as blue and green rocks. The green semi-precious stones display a rich brilliance, which may be striped with white. Like other copper ore, however, the green gemstones have low hardness, and hence not the most suitable for jewelry. Green pebbles of unakite.