AllMinerals/JohnBetts-FineMinerals > Online Mineral Museum Photographic Archive > Minerals from Canada > Quartz-Opal var. Siliceous Sinter Geode

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Quartz-Opal var. Siliceous Sinter Geode from McKay's Head, Nova Scotia, Canada

 
Quartz-Opal var. Siliceous Sinter Geode from McKay's Head, Nova Scotia, Canada

Quartz-Opal var. Siliceous Sinter Geode from McKay's Head, Nova Scotia, Canada

Quartz-Opal var. Siliceous Sinter Geode from McKay's Head, Nova Scotia, Canada

Quartz-Opal var. Siliceous Sinter Geode from McKay's Head, Nova Scotia, Canada

Quartz-Opal var. Siliceous Sinter Geode from McKay's Head, Nova Scotia, Canada

Quartz-Opal var. Siliceous Sinter Geode from McKay's Head, Nova Scotia, Canada

DESCRIPTION:No. 77155
Mineral:Quartz-Opal var. Siliceous Sinter Geode
Locality:McKay's Head, Nova Scotia, Canada
Description:Hollow geode formation of siliceous sinter, a fine grained layered silica deposited in a geyser, that may be composed of quartz, opal, or both. Clearly the underlying form is that of quartz crystals, but the outer layers are microcrystalline. Collected by Tom Minnich ca. 1992
Overall Size:10.3x8.3x2.5 cm
Crystals:micro to 15 mm
Status: Sold - Posted here for reference only
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