Introduction Spinel, a magnesium aluminum oxide found in gemstones, is also …
Read moreIntroduction Rare gemstones made of sphalerite exist. This is not due to the …
Read moreIntroduction Pyrite has been known since antiquity and is also known as &…
Read moreIntroduction Gold was revered for its beauty and spiritual importance long be…
Read moreTo figure out how much a diamond costs, start by selecting a color grade (leftm…
Read moreGrading and evaluating gems:-
Read moreVisual properties How a gem interacts with light is the very essence of its nat…
Read moreA gem is generally defined as any mineral that is highly prized for its beauty…
Read morePyramidal Pyramidal crystal forms are, literally, in the shape of pyramids—py…
Read moreA crystal is a solid in which the component atoms are arranged in a particular,…
Read moreSpecific gravity Specific gravity (SG) is a measure of the density of a substa…
Read moreWhen the need arises to identify or value a gem, it is sent to a professional …
Read moreSulfides Sulfide minerals are those in which sulfur is combined with one or m…
Read moreMinerals are the substances that make up the Earth’s rocks. Each one has its o…
Read moreDefinition:- Chemical resistance minerals weather from a vein deposit, travel d…
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