Where is Snowflake Obsidian found?

Snowflake Obsidian occurs in specific geological environments. Knowing where to look, and in what kind of rock, is the difference between going home empty-handed and finding a great specimen.

Where to find Snowflake Obsidian

Collecting tips

1. Geological Context. Look in areas with recent (Cenozoic) felsic volcanic activity, particularly near rhyolite flows, domes, or volcanic ash deposits. Obsidian often occurs as flow bands, nodules, or larger masses within these settings.
2. Surface Features. Obsidian weathers slowly, but exposed surfaces may show a duller luster or hydration rinds. Freshly broken surfaces will exhibit the characteristic glassy luster and conchoidal fracture.
3. Associated Minerals. May be found alongside other volcanic rocks like rhyolite, pumice, and perlite. Other silica polymorphs or zeolites might be present in the surrounding rock.
4. Safety Precautions. Obsidian breaks with extremely sharp edges, similar to glass. Always wear sturdy gloves and eye protection when handling or collecting. Be aware of unstable terrain in volcanic areas.

Quick Check

Color:

Black with white 'snowflakes'

Luster:

Vitreous (glassy)

Streak:

White (due to its amorphous nature and high silica content, it does not produce a colored streak)

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