Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Lepidolite from
Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA


Locality type:Mine
Classification
Species:'Lepidolite' (not an IMA approved species)
Formation:Primary
Comments:Abundant in the lepidolite-cleavelandite zone. Shannon (1920) gives best overall description - "Some masses are composed of bright small scales of a beautiful deep purple-pink color, intergrown with fine platy cleavelandite stained yellow brown by iron, the contrast in colors yielding very showy specimens. Other coarser scaly masses are pale lavender to gray in color and much of the material shows small spheres up to the size of a pea composed of folia of grayish lepidolite embedded in white cleavelandite."

Hess et al (1943) describe the lepidolite as "globular radial aggregates ranging from less than 1/4 inch to 3/4 inch in diameter". They analyzed the lepidolite for alkali metals and reported that a "visual estimate from the spectrographic pattern of the lepidolite gave K2O, 5.0; Na2O, 1.0; Li2O, 5.0; Rb2O, 3.0; Cs2O, 1.0" percent.
Habit:granular, as globular radial aggregates
Colour:gray to pink to purple
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Extremely common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite13
- var Cleavelandite11
Elbaite10
Beryl5
Triplite5
Quartz5
- var Smoky Quartz3
Fluorapatite2
Spessartine2
Cookeite2
Muscovite2
Columbite-(Fe)-Columbite-(Mn) Series1
Data
Mineral Data:Click here to view Lepidolite data
Locality Data:Click here to view Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
Photo GalleryView Gallery (4 photos)
Data Identifiers
Mindat Occurrence Record ID:37795
Long-form Identifier:1:3:37795:7
GUID (UUID V4):0
Nearest other occurrences of Lepidolite
1.7km (1.1 miles) Halberg Quarries (Eureka Quarry; Cook Quarry; Gem Stone Quarry), East Hampton, Middlesex County, Connecticut, USA
2.8km (1.7 miles) Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
7.1km (4.4 miles) Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA
7.6km (4.7 miles) Tollgate Quarry (Tollgate Mine; Bidwell Quarry; China-stone Quarry), Middletown, Middlesex County, Connecticut, USA
7.7km (4.8 miles) White Rocks Quarry (Consolidated Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
8.2km (5.1 miles) Riverside Quarry (Western Quarry), White Rock Mining District, Middletown, Middlesex County, Connecticut, USA
10.2km (6.4 miles) Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
10.3km (6.4 miles) Schoonmaker Mine, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
12.9km (8.0 miles) Walden Gem Quarry, Portland, Middlesex County, Connecticut, USA
14.9km (9.2 miles) Simpson prospect #1, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
References
 
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