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Essentially a volcanic glass, Obsidian ranges in color from opaque black, to green, brown, mahogany, black with rainbow colors, black with snowflak...

The queen conch (scientific name: Eustrombus gigas), also known as the big phoenix snail or the pink phoenix snail, is a large and edible conch. Th...

Tourmaline is classified as a semiprecious stone and occurs in a vast array of colors, everything from colorless to black, from pastel to bright to...

Chrysocolla, a hydrous copper silicate, is often mistaken for turquoise due to its rich blues and blue to greens. It often also occurs with colors ...

Citrine is a transparent Quartz, ranging in color from pale yellow to golden yellow, honey or brown, giving it a similar appearance to Topaz. It ma...

Spinel is a hard vitreous magnesium aluminum oxide, and comes in a range of other colors, but those varieties are transparent. Black Spinel not onl...

Boulder Opal is a golden-brown to dark brown stone, displaying these colors in patterns of parallel bands. It is considered a precious Opal, and fo...

Kunzite was named after a former Tiffany & Co. vice president, famed mineralogist and jeweler George Frederick Kunz, who first catalogued the s...

Malachite is a copper carbonate with a bright green color and dark green banding. Usually found near copper deposits, it is formed through the comb...

Selenite is a crystal formed from the mineral gypsum, which comes in many forms and color variations, but has been used historically to describe th...

Similar to Tiger's Eye, this gemstone in its polished state looks like what it would be like to capture smoke in a stone -- bottomless black mixed ...

Jade is the industry name for this beautiful deep green stone. Ours is actually a Serpentine, but takes a trained eye and a microscope to discern t...

Verdite is a light to dark-green metamorphic rock, and is a variety of Fuchsite, which is itself a form of Muscovite. It appears green because of t...

Sodalite is named for its sodium content and may be classified as a feldspathoid. Blue Sodalite is sometimes referred to as “poor man’s lapis” beca...

Imperial Jasper occurs naturally in a beautiful range of colors including pinks, mossy greens, burgundy and milky white, with striking patterns of ...

Aquamarine is a transparent to translucent stone ranging from cerulean blue to light blue in higher grades. In lower grades it can be transparent t...

The lion's paw scallop is a species that consists of large scallop shells with ridges and bumps that have a rough texture. The shell is known for i...

Red Creek Jasper is named for the Red River in china where the stone was recently discovered. Its colors include burnt red, mustard yellow, olive g...

This variety of opal is named "dendritic" for the small inclusions within it that resemble moss or ferns. These inclusions consist of iron, mangane...

Sieber agate is not a true agate but rather a glassy, dark blue-grey or green copper slag that formed during ancient copper smelting in Germany, sp...

Labradorite is remarkable for the way its aggregate layers refract light, creating iridescent flashes of blue, gold, pale green or copper red. This...

Green Aventurine is a green translucent quartz with glimmering metallic inclusions. Green is the most common color for Aventurine, but it can also ...

Prehnite was the first mineral to be named after a person: its discoverer, Dutch Colonel Hendrik Von Prehn. Von Prehn discovered the stone in South...