Description
kona Dolomite Gemstone 23.09ct
Description
This Kona Dolomite is natural gemstone which is the Brown colour, its Originates from Michigan and its exact weight is 23.09ct the measurements are 27.02×17.50×5.89mm, the shape and cut of this stone are Pear Cabochon. Its graded Opaque and clarity is good. This 23.09ct Brown colour natural Kona Dolomite Gem is available for ready to ship anywhere in the world. You can also select Certification and shipment method as optional.
Details
Summary No | AK04235 |
Species | Kona Dolomite |
Weight | 23.09ct |
Shape/cut | Pear Cabochon |
Colour | Brown |
Dimension | 27.02×17.50×5.89mm |
Clarity | Good |
Transparency | Opaque |
Origin | Michigan |
Treatment | None |
kona Dolomite Gemstone 23.09ct
Properties Of Kona Dolomite
Chemical Composition: CaMg(CO3)2 + Fe, Mn, Zu, Pb, Co. Ankerite: CaFe(CO3)2 . Kutnohorite: CaMn(CO3)2.
Hardness: 3.5 – 4, varies with direction in crystal.
Specific Gravity (Density): 2.85, as high as 2.93; ankerite, 2.93-3.10
Refractive Index: 1.500-1.750
About kona Dolomite Gemstone
This dolostone from the Kona Hills in Michigan contains stromatolites, fossilized algae. This lapidary material can show mottling, markings, or bands of multiple colours, such as black, brown, cream, grey, orange, pink, red, or yellow. Kona Dolomite dated to over 2 billion years old. Thought to be a cyanobacteria colony (stromatolite). Found in the Kona Hills of Marquette County, Michigan. These early oxygen producers paved the way for more advanced lifeforms of the future.