Locality type: Quarry Classification Species: Microcline Formula: K(AlSi3 O8 ) Comments: Crystals in cavities reach 20 cm or more across, and up to 120 cm across as crude crystals in the core. One large crystal was presented to the American Museum of Natural History, NYC by E. Schernikow. As "perthite", a major component of the pegmatite in general. Habit: blocky to prismatic Colour: white and salmon-pink Luminescent properties: bluish-white 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: Quartz 13 - var Smoky Quartz 1 Cookeite 8 Fluorapatite 5 Albite 5 - var Cleavelandite 5 Elbaite 4 Beryl 3 Cassiterite 2 Columbite-(Fe) 2 Microlite Group 1 Schorl 1 Lepidolite 1 Muscovite 1 - var Schernikite 1 Topaz 1 Data Mineral Data: Click here to view Microcline data Locality Data: Click here to view Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA Photo Gallery View Gallery (9 photos) Data Identifiers Mindat Occurrence Record ID: 38361 Long-form Identifier: 1:3:38361:1 GUID (UUID V4 ): 0 Nearest other occurrences of Microcline
0.6km (0.4 miles) ⓘ Quarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex County, Connecticut, USA 1.3km (0.8 miles) ⓘ Tidewater feldspar quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA 1.5km (0.9 miles) ⓘ Knudsen prospects, Haddam Neck, Haddam, Middlesex County, Connecticut, USA 1.5km (1.0 miles) ⓘ Connecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA 1.6km (1.0 miles) ⓘ Feldspar quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA 1.7km (1.1 miles) ⓘ Hill above the parsonage (unnamed feldspar quarry), Haddam, Middlesex County, Connecticut, USA 1.9km (1.2 miles) ⓘ Kelsey prospect (Parmalee farm), Haddam, Middlesex County, Connecticut, USA 1.9km (1.2 miles) ⓘ Tourmaline locality, Haddam, Middlesex County, Connecticut, USA 2.0km (1.2 miles) ⓘ Rock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA 2.3km (1.4 miles) ⓘ Arnold Granite Quarry (General Brainerd Quarry; Great Hill Quarry; Hazelton Quarry; Haddam Quarry; Brookes Quarry), Haddam, Middlesex County, Connecticut, USA References Cameron, Eugene N., Larrabee, David M., McNair, Andrew H., Page, James J., Stewart, Glen W., Shainin, Vincent E. (1954) Pegmatite Investigations, 1942-45, in New England. Geological Survey Professional Paper 255. US Geological Survey doi:10.3133/pp255 Search for references including Microcline Gillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
Gillette Quarry, Haddam Neck, Haddam, Middlesex County, Connecticut, USA