Diamond

Diamond is a metastable allotrope of carbon, where the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. Diamond is less stable than graphite, but the conversion rate from diamond…

Tantalight/Coltan

Coltan (short for columbite–tantalite and known industrially as tantalite) is a dull black metallic ore from which the elements niobium and tantalum are extracted. The niobium-dominant mineral in coltan is columbite (after niobium's original…

Ruby

A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). The red color is caused mainly by the presence of the element chromium. The quality of a ruby is determined by its color, cut, and clarity,…

Tanzanite

Tanzanite is a rare gemstone with similar color after undergoing artificial heat treatment to form a deep blue coloration. Naturally formed tanzanite is extremely rare. Tanzanite is noted for its remarkably strong trichroism, appearing alternately…

Gold Nuggets

Nuggets are gold fragments weathered out of an original lode.They often show signs of abrasive polishing by stream action, and sometimes still contain inclusions of quartz or other lode matrix material.

Copper Cathode

Copper cathode is the primary raw material input for the production of copper rod for the wire and cable industry. Copper is also used in the production of brass,copper tube, copper sheet products, and found in over 450 alloys. Copper is found…