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What is Bauxite?
What is bauxite? It is the sole ore of aluminum (13th on the Periodic Table of Elements), the basis of a multi-billion-dollar-mining industry, and...
ULTRA TEC Faceting Machines
ULTRA TEC faceting machines help artisans turn rough stones into beautifully cut gems; especially in this digital age where there's a resurgence to create...
What is Mined in Mexico?
What is mined in Mexico - minerals such as selenite, moonstone, apatite and calcite. These days, however, it's not wise to go rock hunting...
Mexican Purple Passion Agate
Purple passion agate wide array of colors ranging from soft pink to lavender to deep dark purple and flowering patterns that largely resemble Agua...
Wulfenite-Mimetite: A Breathtaking Combo
Wulfenite-mimetite specimens from Mexico’s San Francisco mine in Sonora are among the most beautiful in the world.
It's my favorite and I admit to being...
What to Cut: Aurora Opal
Aurora Opal is a homogeneously crystalized, synthetic, impregnated opal. Roy Goldberg, at Aurora Opals, describes this material as irregular and fine crystalline, with nondirectional,...
What is Baltic Amber?
Baltic amber in northern Europe is known as “sunstone” and “solar stone” for its golden, sun-like glow. It is also known as “Baltic gold”...
What to Cut – Fossil Ammonites
Fossil ammonites are highly sought after by fossils collectors and by lapidaries for jewelry designs. The colorful iridescent display catches the eye.
Varieties of Fossil...
Malachite Stone 101
Malachite doesn’t occur in wonderful prismatic transparent crystals like most minerals. Its crystals are tiny, acicular or needle-like crystals clustered so tightly the mineral...
What Makes Minerals Fluorescent?
What makes minerals fluorescent? The short answer is that some minerals are self-activators. Others depend on some form of impurity that acts as an...
