Actinolite – WGNHS – UW–Madison
Actinolite is a common member of the amphibole family. It typically forms during low-grade metamorphism of mafic igneous rocks (such as basalt and gabbro) or carbonate-rich rocks such as limey mudstones. ASHLAND COUNTY: Van Hise and Irving (1892) report actinolite widespread in slates and schists associated with iron formation of the Gogebic Range.
Actinolite | NOVA Mineralogy - nvcc.edu
Two perfect prismatic {110} Fracture: Uneven: Luster: Vitreous: Transparency: Transparent to translucent: Streak: White: Optical Properties: PPL: ... “60/120” cleavage (actually 56° and 124°) XPL: Upper 1 st to 2 nd order interference colors: δ: 0.03: after Perkins, 332: Actinolite in Hand Sample. Actinolite Actinolite in quartz ...
Actinolite: Mineral information, data and localities. - mindat.org
Actinolite is an intermediate member Actinolite-Tremolite Series. Tremolite is defined as having an Mg/(Mg+Fe2+) ratio ≥ 0.9; actinolite has a ratio of ...
Actinolite Mineral: Unveiling its Physical and Optical Properties, …
2023年8月2日 · Actinolite is a captivating mineral that showcases a blend of intriguing physical and optical properties. Its versatility extends to various applications, from industrial use to decorative purposes, while its geographic abundance allows for widespread exploration.
Actinolite: Information, Properties, Occurrence – Geology In
Actinolite is a member of the amphibole group, a family of silicate minerals known for their long, needle-like or prismatic crystals. Actinolite is a relatively common mineral in some metamorphic rocks.
FOMS - Actinolite - Franklin Mineral Information
Franklin actinolite is light-brown, green, and dark green, with vitreous luster, and normal amphibole prismatic cleavages; the density is 3.2 g/cm 3. Massive actinolite occurs in hand-sized masses; crystals, if freely-grown, are prismatic in habit.
Actinolite occurs in small amounts as an accessory mineral in certain igneous rocks. However, it is found primarily in the contact and regional metamorphic zones of calcium-rich sedimentary rocks such as
Actinolite Mineral Data
Actinolite. Comments: Sharp, floater actinolite crystal with a slight green tint. Location: Namibian dessert, more or less due West of Uis, Namibia. Scale: 8.5 x 2.5 x 2 cm. © Fabre Minerals
Actinolite - James Madison University
Actinolite is a metamorphic mineral often associated with chlorite and epidote in greenstone rocks. Usually it is intimately intermixed with these other minerals and hard to see. This is a relatively pure specimen showing the typical radiating prismatic crystal masses.
elongated prismatic crystals. Actinolite has a hardness of 5-6 with a perfect cleavage. This mineral is found in mafic metamorphic rocks on the green schist facies and also forms part of the amphibolite facies. Actinolite is used in jewelry making, to make insulation materials and in structural fire proofing. Actinolite R28