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Opal from
North Table Mountain, Golden, Golden Mining District, Jefferson Co., Colorado, USA

Locality type:Mountain
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
References
References:Rocks & Minerals 79:4
Associated Minerals Based on Photo Data:
Chabazite-Ca3 photos of Opal associated with Chabazite-Ca at this locality.
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view North Table Mountain, Golden, Golden Mining District, Jefferson Co., Colorado, USA
Nearest other occurrences of Opal
3.7km (2.3 miles) South Table Mountain, Golden, Golden Mining District, Jefferson Co., Colorado, USA
8.8km (5.5 miles) Green Mountain, Golden, Golden Mining District, Jefferson Co., Colorado, USA
31.3km (19.5 miles) Columbia, Lamartine Mining District, Clear Creek Co., Colorado, USA
33.3km (20.7 miles) Clyde Mine (Lily Mine; Gale Mine; Hoosier; Western Star), Boulder Co., Colorado, USA
57.6km (35.8 miles) Castle Rock, Castle Rock Area, Douglas Co., Colorado, USA
62.3km (38.7 miles) Red Jacket (Star of the West; Star of the West No. 2; Mohawk; Iowa), Montezuma Area, Summit Co., Colorado, USA
82.5km (51.2 miles) Hot Sulfur Springs, Grand Co., Colorado, USA
94.6km (58.8 miles) Divide, Teller Co., Colorado, USA
94.9km (58.9 miles) Black Cloud Mine (Black Cloud pegmatite; Spillman Prospect), Teller Co., Colorado, USA
 
Mineral and/or Locality  
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