FOMS - Pectolite - Franklin Mineral Information
Franklin pectolite occurs in massive aggregates of prehnite, garnet, franklinite, and minor margarosanite. The assemblage is commonly sheared, and, in some specimens, pectolite is apparently being replaced by prehnite. It is also found in a recrystallized assemblage with roeblingite (Dunn et al., 1983a). (Dunn, 1995) Location Found: Franklin
Margarosanite: Mineral information, data and localities.
Named in 1916 by William Ebenezer Ford and Walter Minor Bradley from the Greek for "pearl" and "tablet," in allusion to the pearly luster and lamellar structure of the crystallized material. The original specimens were found in 1898, but the mineral remained unnamed for nearly 18 years. The Pb analogue of walstromite.
A rare Franklin assemblage of margarosanite, prehnite
Margarosanite is a rare calcium lead silicate mineral that shows a beautiful short wave fluorescent response that ranges from blue/white to pastel shades of purple, pink and lavender. For these reasons it is one of the most coveted (and expensive) fluorescent minerals.
Franklin Fluorescent minerals - Mineralogical Society of America
PECTOLITE. Gives a fluorescence of pure yellow tone probably due to its slight manganese content. CLINOHEDRITE. Fluoresces with a slightly orange yellow tone not so vivid as pectolite or calcite. It is not easy to distinguish from pectolite by the fluorescence. MARGAROSANITE. Fluoresces with a rather lively pale violet color. HARDYSTONITE.
FOMS - Pectolite, axinite, margarosanite, xonotlite, willemite ...
Pectolite - Pectolite, axinite, margarosanite, xonotlite, willemite with non-fluorescent hendricksite mica, andradite garnet, and franklinite from Franklin, New Jersey, under longwave UV light. The pectolite fluoresces peach and the margarosanite light blue. Photo by JVF.
FOMS - Fluorescent prehnite, pectolite, margarosanite under …
Prehnite (pink), pectolite (orange), margarosanite (blue) from Franklin, NJ under shortwave UV light. Photo by JVF
Margarosanite - Photo Gallery - mindat.org
Margarosanite, crystalline flaky mass (fl. SW-violet) with veinlets of nasonite in matrix of axinite-(Mn)(fl. SW-red), and willemite (fl. SW-green). The fluorescence of margarosanite in SW overwhelms the much weaker fluorescence of nasonite and is not visible in the SW image.
41st Rochester Mineralogical Symposium Program and Abstracts
2014年4月1日 · We studied the margarosanite-bearing assemblages, but there is obvious overlap. In the presence of Pb-rich fluids, larsenite and/or esperite may be stable without hardystonite. The implied...
Instalment of the margarosanite group, and data on walstromite ...
The margarosanite group (now officially confirmed by IMA-CNMNC) consists of triclinic Ca- (Ba, Pb) cyclosilicates with three-membered [Si 3 O 9] 6– rings (3R), with the general formula AB2 Si 3 O 9, where A = Pb, Ba and Ca and B = Ca.
A Photographic Comparison of Margarosanite from Franklin, New …
2021年12月20日 · Maps prepared by William Besse.Margarosanite is a rare calcium lead silicate mineral with the formula Pb(Ca,Mn)2Si3O9. It is a prized fluorescent mineral with a blue-violet fluorescence under short...
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