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Aquacreptite (of Shepard)

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About Aquacreptite (of Shepard)Hide

Formula:
Mg4Fe2Si6O19 · 8H2O with some Al2O3, or near
Colour:
Yellowish brorn
Lustre:
Dull
Hardness:
Specific Gravity:
2.08
A non-approved, questionable mineral.

Originally reported from West Chester, Westtown Township, Chester Co., Pennsylvania, USA.


Classification of Aquacreptite (of Shepard)Hide

'Grandfathered' (first described prior to 1959), Questionable

Physical Properties of Aquacreptite (of Shepard)Hide

Colour:
Yellowish brorn
Comment:
Orange yellow
Hardness:
2½ on Mohs scale
Tenacity:
Brittle
Fracture:
Conchoidal
Density:
2.08 g/cm3 (Measured)    

Chemical Properties of Aquacreptite (of Shepard)Hide

Formula:
Mg4Fe2Si6O19 · 8H2O with some Al2O3, or near

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Aquacreptite (of Shepard)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Shepard, C.U. (1868) On aquacreptite, a new mineral, and on corundophylite of Chester, Massachusetts. American Journal of Science, Series 2: 46: 256-257.

Internet Links for Aquacreptite (of Shepard)Hide

Localities for Aquacreptite (of Shepard)Hide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA
 
  • Pennsylvania
    • Chester Co.
      • East Bradford Township
Shepard, C. U., Am. J. Sci. (2) 256 (1868), in Gordon, S. G., "Mineralogy of Pennyslvania", 1922, p. 125
      • Westtown Township
Charles Upham Shepard On aquacreptite, a new mineral, and on corundophylite of Chester [Massachusetts] Am J Sci September 1868 Series 2 Vol. 46:256-257
    • Philadelphia Co.
      • Hestonville
Samuel S. Gordon (1922) Mineralogy of Pennsylvania.; pg. 234
Mineral and/or Locality  
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