Pay in 4 interest-free payments of $4.00 Learn more
Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
Formula: CuAl₆(PO₄)₄(OH)₈ • 4H₂O urquoise is an opaque
The cubic form is more rare and found only in Navajún
If they are held up to the light
Herkimer “Diamonds” come from Herkimer County in New York State
It is a type of fossilized ammonite shell that is primarily comprised of aragonite which is the same mineral contained in Mother of Pearl
Corundum (Ruby) Arizona Formula: CuAl₆(PO₄)₄(OH)₈ • 4H₂O urquoiseThis specimen is a red variety of corundum (AlO), colored by trace amounts of chromium that produce its distinctive ruby tone and vivid red fluorescence under ultraviolet light. While gem quality ruby represents the transparent form of this mineral, this piece showcases the same composition and glowing energy in a natural crystalline state. Corundum ranks 9 on the Mohs hardness scale and is found in metamorphic and igneous environments worldwide. This
US$ 34.00
US$ 60.00
US$ 497.50
