Yellow grape-like arsenic and lead ore limonite the students in the surrounding rock.
Formula: As
System: Trigonal
Colour: Tin-white, tarnishing to ...
Lustre: Metallic, Dull
Hardness: 3½
From Mexico (San Pedro, Corralitos, Chihuahua, Mexico),
Yellow grape-like arsenic and lead ore limonite
Yellow grape-like arsenic and lead ore limonite the students in the surrounding rock.
Formula: As
System: Trigonal
Colour: Tin-white, tarnishing to ...
Lustre: Metallic, Dull
Hardness: 3½
From Mexico (San Pedro, Corralitos, Chihuahua, Mexico),
