"Herkimer-style" Quartz

SiO2
Also known as
  • "Herkimer-stil" kvarts
  • Apenninische Diamanten
  • Bristol Diamond
  • +19 more
Variety of
Quartz
QuartzSiO2

Where it forms, where it's found

42recorded occurrences
Source · OpenStreetMap

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen215.99931.998
53.26%
14SiSiliconSilicon128.08528.085
46.74%
Total60.083100.00%

Mass share = atoms × atomic mass ÷ molar mass × 100

From Mindat formula

Synonyms

  • "Herkimer-stil" kvarts
  • Apenninische Diamanten
  • Bristol Diamond
  • Diamant de Mirabeau
  • Diamant du Québec
  • Diamant Mirabeau
  • Herkimer Diamond
  • Herradura Diamonds
  • Himalayan Diamond
  • Little Falls Diamond
  • Lombardische Diamanten
  • Marmaroscha-Diamanten
  • Marmaroscher Diamanten
  • Marmarosh Diamonds
  • Merthyr Diamond
  • Middleville Diamond
  • Mirabeau Diamonds
  • Mirabeau-Diamanten
  • Öhrli-Diamanten
  • Patagonian Diamond
  • Quebec Diamond
  • Schaumburger Diamant

Literature, links & citation

Citations
  1. 1989Ulrich, William (1989) The Quartz Crystals of Herkimer County and its Environs. Rocks & Minerals, 64 (2) 108-122 doi:10.1080/00357529.1989.11761742DOI: 10.1080/00357529.1989.11761742
  2. 1995Rykart, R. (1995) Quarz-Monographie - Die Eigenheiten von Bergkristall, Rauchquarz, Amethyst, Chalcedon, Achat, Opal und anderen Varietäten. Ott-Verlag, Thun (in German).
  3. 1995Russ, K.-H. (1995): Die Quarzkristalle von Herkimer / New York. Der Aufschluss, 46 (5), 229-232 (in German).
  4. 1997Russ, K. H. (1997): Historie, Geologie und Mineralogie der Quarz-Kristalle von Herkimer, New York. Mineralien-Welt 8 (6), 61-71 (in German).
  5. 2003Wagenplast, Peter, Friebe, J. G. (2003) Vorkommen, Ausbildung und Entstehung der "Marmaroscher Quarze" in Vorarlberg. Vorarlberger Naturschau - Forschen und Entdecken, 12. 53-64
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {"Herkimer-style" Quartz — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/herkimer-style-quartz-1877},
  note      = {Accessed 2026-05-11}
}