Durangite & Cassiterite Mine

Durangite

Also found at:

• No other locations listed yet

Cassiterite

Tin oxide mineral, the primary ore of tin. Found in Alabama's pegmatite deposits and other locations in the US.

Also found at:

• Millsite Tin Mine

Hematite

Iron oxide mineral responsible for red coloration in rocks. Michigan's Upper Peninsula and New York's Adirondack region contain significant hematite deposits.

Also found at:

• Lake Martin Rockhounding Area
• Prairie Creek (Lamproite Diatreme)
• Champion Mine & Jasper Hill

Topaz

Blue topaz is Texas's state gem. Utah's Topaz Mountain produces clear and sherry-colored crystals.

Also found at:

• Millsite Tin Mine
• Crystal Peak
• Devil's Head

Bixbyite

Also found at:

• Topaz Mountain
• Solar Wind Bixbyite & Pink Topaz Mine
• Maynard's Red Beryl & Topaz Mine

Pseudobrookite

Also found at:

• Solar Wind Bixbyite & Pink Topaz Mine

Tridymite

Also found at:

• No other locations listed yet

Quartz Crystals

Clear, smoky, and rose quartz crystals are among the most common and rewarding rockhounding finds. Arkansas produces world-class quartz.

Also found at:

• Alabama Gold Camp
• Horseshoe Mine
• Lake Martin Rockhounding Area

Topaz Mountain

Juab County, Utah · BLM Land

Part of the Thomas Range, this BLM-managed area produces gem-quality topaz (naturally amber/sherry, fades to clear in sunlight), red beryl, bixbyite (...

Utah Geode Beds (Dugway Geode Beds)

Dugway, Utah · BLM Land

Famous BLM geode beds producing beautiful crystal-lined geodes formed 6-8 million years ago from rhyolite volcanic activity. Trapped gasses formed cav...

Utah Obsidian Beds

Fillmore, Utah · BLM Land

BLM areas for black and mahogany obsidian in west-central Utah. Volcanic deposits from the Black Rock Desert region.

Utah Red Beryl (Bixbyite) Area

Delta, Utah · Fee Dig

The Thomas Range is the only place in the world where red beryl (bixbite) is found. One of the rarest gemstones on Earth. Private fee-dig operations l...

Utah Sunstone Area

Beaver, Utah · BLM Land

BLM area in the Mineral Mountains, the largest exposed plutonic body in Utah with rock compositions from quartz monzonite to granite. Collectors find ...

Utah Variscite (Lucin Area)

Lucin, Utah · BLM Land

BLM area in northwest Utah near the ghost town of Lucin, known for producing variscite — a rare hydrated aluminum phosphate mineral (green, often mist...