Chalcedony

Chalcedony is a cryptocrystalline form of silica, composed of very fine inter growths of the minerals quartz and moganite, these are both silica minerals. Chalcedony has a waxy luster, and may be semi-transparent or translucent. It can assume a wide range of colors, but those most commonly seen are white to gray, grayish-blue or a shade of brown ranging from pale to nearly black. The name is probably derived from the town Chalcedon in Asia Minor.
Color: White, Black, Grey (blue), Semi Transparent

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Buoyant Blue Chalcedony hosts white terminated crystals of Stilbite in this 6" plus wide plate specimen. 3.75" x 6.25" 1 lb. 6 oz.

Apophyllite and Stilbite on Chalcedony

Black Chalcedony Stalactite with Sparkling Apophyllite Crystals (Repai… https://www.superbminerals.us/products/black-chalcedony-stalactite-with-sparkling-apophyllite-crystals-af24 Features:A tall, blackish, sparkling and translucent Chalcedony stalactite, rising from a Chalcedony base, And on the stalactite Geemy Apophyllite crystals gives sparkling look to the specimen.  A beautiful and natural formation – a great aesthetic piece in excellent condition. Primary Mineral(s): Apohyllite

Black Chalcedony Stalactite with Sparkling Apophyllite Crystals (Repaired) # AF24

Features: 1. Gemmy, clear and white apophyllite, shining brightly. 2. Small stilbite blades have formed throughout the specimen. 3. Double-terminated apophyllite crystals. Dimensions 14 CMS X 5 CMS 250 gms Primary Mineral(s): Apophyllite Secondary Mineral(s): Stilbite Matrix: Chalcedony Locality: Jalgaon, Maharashtra, India Year of Discovery: 2018

Black Chalcedony with Apophyllite Natural Mineral Specimen (Repaired) - #AF19

Chalcedony Black Cluster in Geod Natural Mineral Specimen # B 3683

Chalcedony Black with Stilbite, Heulandite Natural Mineral Specimen # … https://www.superbminerals.us/products/chalcedony-black-with-stilbite-heulandite-natural-mineral-specimen-b-3965 Features A very large Geode fragment lined with black stalactitic Chalcedony, partially coated with a sparkling colorless Chalcedony druse, and hosting a numerous, highly translucent white-colored Stilbite crystals. There is another, smaller Stilbite crystal near a corner, but it’s the pristine, centered Stilbite

Chalcedony Black with Stilbite, Heulandite Natural Mineral Specimen # B 3965

This is a really neat specimen with extreme Botryoidal bubbles rising above a lake of chalcedony...truly a collector piece and an excellent display!!!

Chalcedony Botryoidal Formation Natural Mineral Specimen # B 3503

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Chalcedony Gorgeous Natural Sculpture Formation, Nashik, India # M014

Chalcedony Sea Coral Formation with Stellerite, Jalgaon, India #TB34

Chalcedony Stalactite with Bow Tie Stellerite # E31

Chalcedony Stalactites with Stilbite Bow Ties - #A21

Chalcedony Stalactites with Stilbite, Jalgaon, India #TUC034

An exceptional rare formation of translucent Chalcedony crystals on extremely unique and fantastically contrasting Chabazite matrix. Dimensions 9 cm x 8 cm Weight : 350 gm

Chalcedony Translucent Crystals on Unique Chabazite matrix - #20T165

Chalcedony Unusual Crystal on Matrix Natural Mineral Specimen # B3492

Green Apophyllite Flower On Stilbite Plate, Nashik, India # M09

$This intricate Chalcedony stalactite hosts red-peach Stilbite and beautifully opaque Apophyllite. Endless fractal adventures await! Jalgaon, Maharashtra, India. 19 x 10 cm, 800 gms$