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Photomicrograph of thin section of monzonite (in cross polarised light)
Photomicrograph of thin section of monzonite (in plane polarised light)
An intrusion (Notch Peak monzonite) inter-fingers (partly as a dike) with highly-metamorphosed host rock (Cambrian carbonate rocks). From near Notch Peak, House Range, Utah

Monzonite is an igneous intrusive rock. It is composed of approximately equal amounts of plagioclase and alkali feldspar, with less than 5% quartz by weight.[1] It may contain minor amounts of hornblende, biotite and other minerals. If quartz constitutes greater than 5%, the rock is termed a quartz monzonite.[2]

If the rock has a greater percentage of alkali feldspar, it grades into a syenite. With an increase in calcic plagioclase and mafic minerals the rock type becomes a diorite. The volcanic equivalent is the latite.[2]

Etymology[edit]

Monzonite was originally named after the Monzoni range in Val di Fassa (Trento Province - Italy) where it is abundant. As rock definitions have been systematized and codified, this association has lost any relevance to the rock's definition.[1]

See also[edit]

http://it.wikipedia.org/wiki/Monzoni

References[edit]

  1. ^ a b Le Maitre, R.W., Igneous Rocks: A Classification and Glossary of Terms Cambridge University Press, 2nd ed, pp. 113 ISBM 0-521-66215
  2. ^ a b Klein, Cornelis and Cornelius S. Hurlbut, Jr., Manual of Mineralogy, Wiley, 20th ed, pp. 480-484 ISBN 0-471-80580-7

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Monzonite — Please support Wikipedia.
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2113 videos foundNext > 

William T. Hathaway: Quartz Monzonite Dike Near Renan, VA

Naturalist William T. Hathaway of PittPaths.com describes the geological background of a quartz monzonite dike near Renan, Pittsylvania County, Virginia. 1993.

William T. Hathaway: Huge Quartz Monzonite Boulder Near Renan, VA

Naturalist William T. Hathaway of PittPaths.com describes the geological background of a quartz monzonite boulder near Renan, Pittsylvania County, Virginia. ...

WHERE TO FIND GOLD !!! In Quartz Granite ( Monzonite )

Gold Prospecting in the Desert by metal detecting old Hard Rock mines. We show you where to find gold.We discover Rich Gold in Calcite pockets inside Barite ...

Joshua Tree Bouldering - Pumping Monzonite - V7

What a project! It seemed like more effort was spent on each attempt of this problem than any other in recent memory, even the projects that I started before...

14K White Gold Mens Monzonite Pinky Ring 1.25 Ctw

This exquisite mens monzonite pinky ring is crafted in highly gleaming 14K white gold. The center is bezel set with one 0.90 carat monzonite (man made diamon...

Monzonite

Seafight - Diseño - Monzonite

Bueno undiendo al famosos Monzonite !! Undido Por: Kanguro[TAU] Reparado Por: Ặ£мΐяẶñтξ_тẶκβÐм_тãŭ.

Monzonite

The Riddle of Monzonite (2012)-Official Trailer

This short documentary film explores the sport of rock climbing in Joshua Tree National Park, and its demographics. For more information, definitely see my b...

Seafight Global1 Shooting Monzonite RO@

Seafight Global1 Shooting Monzonite RO@ ††ÐØØMΣĐSĦłP††RØ event ship.

2113 videos foundNext > 

5 news items

 
Junior Mining Network
Mon, 14 Apr 2014 13:03:45 -0700

The DOK property exhibits widespread copper-gold-silver mineralization (with minor concentrations of molybdenite) in potassic altered andesite of the Stuhini Group and altered quartz monzonite, quartz diorite, and granodiorite intrusives. The ...
 
MarketWatch
Tue, 08 Apr 2014 05:09:27 -0700

Central Monzonite Zone - The large Central Monzonite copper and gold porphyry target in the core of the Durand Stock is more than 1.5 km long along an east trending axis. Historically the area has been poorly tested, however it comprises the highest ...
 
Gant Daily
Tue, 08 Apr 2014 19:26:15 -0700

Gold occurrences were determined onsite, appearing in veins, and distributed over pyrite in the form of quartz monzonite and mica schist with sericite carbonate alteration. Premium's drilling contractor completed fifteen drill holes at the site; three ...

International Business Times AU

International Business Times AU
Wed, 09 Apr 2014 15:30:00 -0700

Gold occurrences were determined onsite, appearing in veins, and distributed over pyrite in the form of quartz monzonite and mica schist with sericite carbonate alteration. Premium's drilling contractor completed fifteen drill holes at the site; three ...

ISN

ISN
Thu, 27 Mar 2014 00:47:28 -0700

TREI would use monzonite sand provided by India's Indian Rare Earths Limited in its production of REEs. Last November, Japan and India signed a trade pact on Indian exports to Japan, and Tokyo and Delhi are considering forming joint ventures operating ...
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