Where is Snowflake Obsidian found?
Volcanic Glass with Cristobalite Inclusions
Got a photo? Identify rocks instantly with the Rockby app
Open the appSnowflake 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
United States
Particularly in volcanic regions of the western U.S., such as Oregon (Glass Buttes), Utah, Arizona, and California.
Mexico
Known occurrences in various volcanic areas.
Iceland
Associated with its extensive volcanic activity.
Japan
Found in areas with recent volcanic history.
Argentina
Occurrences in the Andes volcanic belt.
Collecting tips
- Volcanic Regions. Focus your search in areas with recent or geologically young felsic volcanic activity. Look for lava flows, volcanic domes, and areas where volcanic glass is known to occur.
- Outcrops and Talus Slopes. Snowflake obsidian can be found in outcrops of obsidian flows or as loose fragments in talus slopes and stream beds downstream from volcanic sources. Look for dark, glassy rocks with distinct white patterns.
- Safety Precautions. Obsidian, including Snowflake Obsidian, breaks with extremely sharp edges. Handle with care to avoid cuts. Wear sturdy gloves and eye protection when collecting or breaking specimens. When cutting or grinding, use appropriate respiratory protection (e.g., N95 mask) to avoid inhaling fine silica dust, which can cause silicosis.
Quick Check
- Color:
- Black with white 'snowflakes'
- Luster:
- Glassy
- Streak:
- White (due to its hardness, it will scratch a streak plate rather than leave a streak)
Explore Snowflake Obsidian
Identify rocks anywhere
Free on iOS, Android, and Web. Photo identification, full database, and your personal collection.