Locality type:

Mine

Classification

Species:

Cryptomelane

Formula:

K(Mn₇⁴⁺Mn³⁺)O₁₆

Confirmation

Validity:

Believed Valid

Data

Mineral Data:

Locality Data:

Data Identifiers

Mindat Occurrence Record ID:

366324

Long-form Identifier:

1:3:366324:0

GUID (UUID V4):

6bbe7262-e3ef-4040-b484-234131e6154e

Nearest other occurrences of Cryptomelane

12.1km (7.5 miles)

48.2km (30.0 miles)

References

50.

J. Gröbner, I. Dittrich & R. Dittrich (2006): Mangan-Mineralien aus dem Innerste-Tal im Harz. Lapis 31 (4), 32-33

Reference Search (possible matching items)

	*Ramdohr, Paul (1969) The Ore Minerals and their Intergrowths. Pergamon Press, Oxford. 1174pp. doi:10.1016/c2013-0-10027-x*	Book
	Congress Catalog Card No. 66-17809 Printed in Germany 08 011635 3 PREFACE TO THE T H I R D (GERMAN)...N , Troy, New York, USA G. FRIEDRICH, Aachen, Germany H . FROHBERG, Toronto, Canada R. L A GANZA, North...Pullman, Washington R. A. ZIMMERMANN, Heidelberg, Germany 2 Bamdohr, Theorie Minerals XVÜ ABBREVIATIONS...places of extreme differentiation (e.g., at the Frood Mine and at Insizwa) bismuth and tellurium minerals are...solidif}^ at temperatures several hundred degrees lower, and thus after the ore minerals. 2. Magmatic differentiation
	*Kimberley, Michael M. (1979) Geochemical distinctions among environmental types of iron formations. Chemical Geology, 25 (3) 185-212 doi:10.1016/0009-2541(79)90141-4*	Journal (article/letter/editorial)
	Hsuanhua; Late Precambrian Y-Precambrian Z: ii Lower Hakos-Damara; Middle Precambrian X-Middle Precambrian...which occur in the unmetamorphosed Mississippian (Lower Carboniferous) Tynagh MECS-IF (Schultz, 1966). Siderite...isotopically heaviest chert in the Precambrian X (Lower Proterozoic) Marza Mamba--Hamersley transformation...Precambrian X Wauseca Pyrite Bed of the Lake Superior district is isotopically similar to the meteoritic standard...Hill, 49 Kirkland-Clinton, Change, 41 Alpha-Friederike, 37 Cleveland, 29 Green Bed-Lorraine, Middle

Cryptomelane from Friederike Mine, Lautenthal, Langelsheim, Goslar District, Lower Saxony, Germany