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3.7" Smoky Quartz Cluster with Hyalite Opal Inclusion - Nambia
This is an interesting, 3.7" wide cluster of smoky quartz crystals collected from Erongo Region of Namibia. Under shortwave UV light, a vibrant green inclusion of hyalite opal can be found near the base of the cluster. The reaction to shortwave UV is a result of trace uranyl ions.
Comes with an acrylic display stand.
Comes with an acrylic display stand.
About Hyalite Opal
Hyalite is a transparent to translucent variety of opal that commonly forms smooth, glassy globules or botryoidal coatings. An amorphous form of silica (SiO₂), hyalite is classified as a mineraloid and typically forms as a volcanic sublimate in volcanic or pegmatitic environments, where silica-rich vapors condense and solidify. It is also known as water opal, jalite, or Müller’s glass, named after its describer, Franz-Joseph Müller von Reichenstein.
One of hyalite’s most distinctive features is its intense fluorescence: under shortwave ultraviolet light, many specimens glow a vivid neon green. This striking effect is caused by trace amounts of uranium, present as uranyl ions, incorporated into the opal’s structure during formation. In normal lighting, hyalite often appears colorless and glass-like, making its dramatic UV response especially surprising and highly prized by mineral collectors.
Hyalite is a transparent to translucent variety of opal that commonly forms smooth, glassy globules or botryoidal coatings. An amorphous form of silica (SiO₂), hyalite is classified as a mineraloid and typically forms as a volcanic sublimate in volcanic or pegmatitic environments, where silica-rich vapors condense and solidify. It is also known as water opal, jalite, or Müller’s glass, named after its describer, Franz-Joseph Müller von Reichenstein.
One of hyalite’s most distinctive features is its intense fluorescence: under shortwave ultraviolet light, many specimens glow a vivid neon green. This striking effect is caused by trace amounts of uranium, present as uranyl ions, incorporated into the opal’s structure during formation. In normal lighting, hyalite often appears colorless and glass-like, making its dramatic UV response especially surprising and highly prized by mineral collectors.
About Smoky Quartz
Smoky quartz is a variety of quartz distinguished by its smoky gray to deep brown or nearly black coloration, a name inspired by the hazy, smoke-like appearance within the crystal. While some specimens can appear very dark or even opaque, most smoky quartz remains at least partially translucent, allowing light to pass through its internal veils and zoning. The color develops when trace amounts of aluminum within the quartz lattice are exposed to natural irradiation over geologic time, subtly altering the crystal structure and producing its characteristic smoky tones.
Smoky quartz is a variety of quartz distinguished by its smoky gray to deep brown or nearly black coloration, a name inspired by the hazy, smoke-like appearance within the crystal. While some specimens can appear very dark or even opaque, most smoky quartz remains at least partially translucent, allowing light to pass through its internal veils and zoning. The color develops when trace amounts of aluminum within the quartz lattice are exposed to natural irradiation over geologic time, subtly altering the crystal structure and producing its characteristic smoky tones.
SPECIES
Quartz var. Smoky & Opal var. Hyalite
LOCATION
Erongo Region, Namibia
SIZE
3.7 x 3.1"
CATEGORY
SUB CATEGORY
ITEM
#319220
