Troy-Deary Gun Club Basalt Quarry
- Calcite: White to yellowish coating and in vugs.
- Goethite: Thin, brown coating over siderite.
- Opal: Three different colors: black, brown and white
- Siderite: Pale-brown to pale-yellow, botryoidal masses
Mineral Location Map
Mineral Location Index
Latah County Road Map