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1.4" Botryoidal Hyalite Opal with Chalcedony - Mexico
This 1.4" wide specimen features an association of glassy botryoidal hyalite opal and chalcedony, collected from San Luis Potosi, Mexico.
Hyalite Opal
Hyalite is a transparent to translucent variety of opal that typically bears a globular structure. An amorphous form of silica (SiO2), hyalite opal forms as a volcanic sublimate in volcanic or pegmatic rock and is thereby considered a mineraloid. It can be referred to as water opal, jalite, or even Muller's glass, named after the man who discovered it, Franz-Joseph Müller von Reichenstein. It has a hardness of 5.5–6 on the Mohs scale and exhibits conchoidal fracturing.
Hyalite is a transparent to translucent variety of opal that typically bears a globular structure. An amorphous form of silica (SiO2), hyalite opal forms as a volcanic sublimate in volcanic or pegmatic rock and is thereby considered a mineraloid. It can be referred to as water opal, jalite, or even Muller's glass, named after the man who discovered it, Franz-Joseph Müller von Reichenstein. It has a hardness of 5.5–6 on the Mohs scale and exhibits conchoidal fracturing.
$15
SPECIES
Opal var. Hyalite & Quartz var. Chalcedony
LOCATION
San Luis Potosi, Mexico
SIZE
1.4 x 1.1"
CATEGORY
SUB CATEGORY
ITEM
#324381
