| Comments: | The hydroxylclinohumite is restricted to rocks that show relatively little retrograde alteration. It occurs in rocks mainly consisting of stubby pyroxene crystals cut by veinlets of green serpentine, and lesser amounts of anthophyllite, actinolite, chlorite, phlogopite, magnetite and antigorite.
Titanian hydroxylclinohumite occurs as scattered, irregular to rounded grains and grain clusters up to 5 cm across. |
 | | Report (issue) | | 30' 45' 111o15' o 45 30' 6 3 5 2 Southern Ruby Range (map area B) In response to requests from the...Dillon BLM Resource Area in Beaverhead and Madison Counties, southwestern Montana. These agencies use mineral...eastern part of Beaverhead County, Montana, and the western part of Madison County, Montana. The study area...Pass south to the Montana-Idaho border; and (4) The southern boundary is the Montana-Idaho border (the...Henrys Lake Mountains and the Gravelly, Greenhorn, Ruby and Snowcrest Ranges, as well as the intervening |  | | Journal (article/letter/editorial) | | OF CLINOHUN,{ITEAND ASSOCIATED MINERALS FROM WOLF CREEK, MONTANA1 E. Wn. HuNntcu, The Unitersi.tyof Michi'gan...Arbor, Michigan' ABSTRACT INrnooucnoN The wolf creek pluton is the largest of seven Prebeltian ultramafic...intrusives exposedin the southern Ruby Mountains in southwestern Montana. The writer first examined it in...engagedin a general study of the Montana Prebeltian rocks for the Montana Bureau of Mines and Geology. The...studies there. The wolf creek intrusive is about 23 miles airline southeast of Dillon, Montana, largely in Beaverhead |  | | Journal (article/letter/editorial) | | METAMORPHOSED PRECAMBRIAN ULTRAMAFIC ROCKS IN THE RUBY RANGE, MONTANA NEAL R. DESMARAIS Department of Geological...Metamorphosed Precambrian ultramafic rocks in the Ruby Range, Montana. Precambrian Res., 16: 67--101. Ultramafic...occur in many localities throughout the Archean Ruby Range metamorphic complex. Consistent field, petrologic...relationships in the ultramafic rocks of the Ruby Range indicate that they were emplaced early and participated... olivine, green spinel, ± titanian hydroxyl-clinohumite) and associated rock types (meta-rodingites) |  | | Journal (article/letter/editorial) | | Montana Mineral Locality Index Downloaded by [University of Nebraska, Lincoln] at 20:00 09 April 2015...2015 K NOWN AS THE TREASURE STATE, Montana is rich in mineral and gemstone localities. The state motto...established Montana’s first mining camp at Gold Creek in 1860. Geologic Provinces The state can be divided...The middle third of the state is known as the Montana alkali province where the sediments have MICHAEL...the Indian Queen mine ca. 1905 at Farlin, Beaverhead County. 208 ROCKS & MINERALS Downloaded by [University |  | | Report (issue) | | Bedded Iron Deposits of the Southwestern Ruby Range, Montana , , 'A " U,S. GEOLOGICAL SURVEY PROFESSIONAL...Bedded Iron Deposits of the Southwestern Ruby Range, Montana By HAROLD L. JAMES With a section on THE...THE KELLY IRON DEPOSIT OF THE NORTHEASTERN RUBY RANGE U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 1495...and mineral deposits of the southwestern Ruby Range, Montana UNITED STATES GOVERNMENT PRINTING OFFICE...bedded iron deposits of the southwestern Ruby Range, Montana. (U.S. Geological Survey professional paper |  | | Book (volume) | | 01225 442836) Distributors USA AAPG Bookstore PO Box 979 Tulsa OK 74101-0979 USA (Orders: Tel. (918) 584-2555...analyses representative, wherever possible, of the range of chemical and paragenetic variation. From most...The M4 sites however can be octupied by a wider range of cations and their sizes determine the way in...anthophyllite and cummingtonite near Chester, Vermont, USA, and which have regularly repeating sequences of...minerals of the group exhibit an extremely wide range of chemical composition. The composition of the |
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