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Columbite-(Fe) from
Spinelli prospect (Spinelli quarry), Glastonbury, Hartford County, Connecticut, USA


06582680017368222752364.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
00598280017419040929442.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
02649770017272018501051.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
02210450017398387877347.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
07055890017364689155358.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
05555850017419014624722.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
02649770017272018501051.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
08379160017370474017099.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
06582680017368222752364.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
03754060017433403838203.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
02649770017272018501051.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
02210450017398387877347.jpg
Columbite-(Fe), etc.

Spinelli prospect, Glastonbury, Hartford County, Connecticut, USA
Locality type:Prospect
Classification
Species:Columbite-(Fe)
Formula:Fe2+Nb2O6
Comments:crude crystals with dull luster typically associated with or grown up against samarskite-(Y) crystals. In aggregates to about 8 cm, tiny euhedral crystals rare. Duller luster of the coarse, uneven fracture surface differentiates it from samarskite.
Habit:crudely prismatic
Colour:black
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Common
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Samarskite-(Y)24
Albite21
Muscovite7
Microcline6
Data
Mineral Data:Click here to view Columbite-(Fe) data
Locality Data:Click here to view Spinelli prospect (Spinelli quarry), Glastonbury, Hartford County, Connecticut, USA
Photo GalleryView Gallery (14 photos)
Data Identifiers
Mindat Occurrence Record ID:560693
Long-form Identifier:1:3:560693:1
GUID (UUID V4):0
Nearest other occurrences of Columbite-(Fe)
5.8km (3.6 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
6.0km (3.8 miles) ⓘSimpson prospect #1, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
6.2km (3.9 miles) ⓘHowe Quarry (Howe #1 Quarry; Huspband Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
6.7km (4.1 miles) ⓘCase Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
6.8km (4.2 miles) ⓘCase Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
6.8km (4.2 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
6.8km (4.2 miles) ⓘCase Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
6.9km (4.3 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
7.0km (4.4 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
7.6km (4.7 miles) ⓘBordonaro Quarry, Portland, Middlesex County, Connecticut, USA
References
Davis, Fred E. and Stefan Nicolescu. (2011): Samarskite Rediscovered at the Spinelli Prospect, Glastonbury, Connecticut. Bulletin of the Peabody Museum of Natural History: 52(1):135-152
Albini, A.J. and Moritz, H. (2013), Collecting samarskite at the historic Spinelli prospect, Glastonbury, Hartford County, Connecticut. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 8.
 
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