Opal & Natural Non-Crystalline Geological Specimens for Sale

Explore mineraloids: naturally occurring geological materials that lack the ordered crystal structure of true minerals. Discover opal and other distinctive specimens valued for their colour, texture, translucency, play-of-colour and unusual formation.

63 products

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Obsidian spear point, a volcanic glass, from Mexico.Obsidian spear point, a volcanic glass, from Mexico.
Mexico Obsidian - Spear Point - Modern Recreation
From $150.00 CAD
Mahogany obsidian biface (modern recreation) from Mexico, photo 1 of 4Mahogany obsidian biface (modern recreation) from Mexico, photo 2 of 4
Mexico Mahogany Obsidian - Biface - Modern Recreation
From $130.00 CAD
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Silver Sheen Obsidian cactus knife, a volcanic glass, from Mexico.Silver Sheen Obsidian cactus knife, a volcanic glass, from Mexico.
Mexico Silver Sheen Obsidian - Cactus Knife
From $220.00 CAD
Black Obsidian cactus knife, a volcanic glass, from Mexico.Black Obsidian cactus knife, a volcanic glass, from Mexico.
Mexico Black Obsidian - Cactus Knife - Modern Recreation
From $220.00 CAD
Mahogany obsidian spear point (modern recreation) from Mexico, photo 1 of 4Mahogany obsidian spear point (modern recreation) from Mexico, photo 2 of 4
Mexico Mahogany Obsidian - Spear Point
From $150.00 CAD
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Gold sheen obsidian spear point (modern recreation) from Mexico, photo 1 of 6Gold sheen obsidian spear point (modern recreation) from Mexico, photo 2 of 6
Mexico Gold Sheen Obsidian - Spear Point
From $150.00 CAD
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Fire Opal oval facet, hydrated silica, from Juniper Ridge, Oregon, USA.Fire Opal oval facet, hydrated silica, from Juniper Ridge, Oregon, USA.
Oregon, U.S.A. Fire Opal - Oval Facet
$50.00 CAD
Fire Opal round facet, hydrated silica, from Juniper Ridge, Oregon, USA.Fire Opal round facet, hydrated silica, from Juniper Ridge, Oregon, USA.
Oregon, U.S.A. Fire Opal - Round Facet
$50.00 CAD
Fire Opal facet, hydrated silica, from Juniper Ridge, Oregon, USA.Fire Opal facet, hydrated silica, from Juniper Ridge, Oregon, USA.
Oregon, U.S.A. Fire Opal - Facet
$50.00 CAD
Fire Opal cabochon, hydrated silica, from Mexico.Fire Opal cabochon, hydrated silica, from Mexico.
Mexico Fire Opal - Cabochon
$10.00 CAD
Fire Opal freeform, hydrated silica.Fire Opal freeform, hydrated silica.
Oregon, U.S.A. Fire Opal - Freeform
$3,300.00 CAD
Fire Opal mineral specimen, hydrated silica.Fire Opal mineral specimen, hydrated silica.
Oregon, U.S.A. Fire Opal - Specimen
$7,500.00 CAD
Fire Opal cabochon, hydrated silica, from Mexico.Fire Opal cabochon, hydrated silica, from Mexico.
Mexico Fire Opal - Cabochon
$8.00 CAD
Obsidian Arrowhead - Asymmetrical - Flintknapping Preform - BC, CanadaObsidian Arrowhead - Asymmetrical - Flintknapping Preform - BC, Canada
U.S.A. Obsidian Arrowhead - Asymmetrical - Flintknapping Preform
From $5.00 CAD
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Obsidian Arrowhead Flintknapping Preform/ Blank - BC, CanadaObsidian Arrowhead Flintknapping Preform/ Blank - BC, Canada
U.S.A. Obsidian Arrowhead - Symmetrical - Flintknapping Preform
From $5.00 CAD
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