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CINNABAR (Mercury Sulfide) Minerals | by Name | by Class | by Groupings | Search | Sulfides

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CINNABAR (Mercury Sulfide) Minerals | By_Name | By_Class | By_Groupings | Search | Sulfides THE MINERAL CINNABAR ● Chemistry: HgS, Mercury Sulfide ● Class: Sulfides and Sulfosalts ● Uses: primary ore of mercury, a pigment and as a minerals specimen. ● Specimens Cinnabar is a colorful mineral that adds a unique color to the mineral color palette. Its cinnamon to scarlet red color can be very attractive. Well shaped crystals are uncommon and the twinned crystals are considered classics among collectors. The twinning in cinnabar is distinctive and forms a penetration twin that is ridged with six ridges surrounding the point of a pryamid. It could be thought of as two scalahedral crystals grown together with one crystal going the opposite way of the other crystal. Cinnabar was mined by the Roman Empire for its mercury content and it has been the main ore of mercury throughout the centuries. Some mines used by the Romans are still being mined today. Cinnabar shares the same symmetry class with quartz but the two form different crystal habits. PHYSICAL CHARACTERISTICS: ● Color is a bright scarlet or cinnamon red to a brick red. ● Luster is adamantine to submetallic in darker specimens. ● Transparency crystals are translucent to transparent. ● Crystal System is trigonal; 32 ● Crystal Habits: individual, well formed, large crystals are scarce; crusts and crystal complexes are more common; may be massive, or in capilary needles. Crystals that are found tend to be the six sided trigonal scalahedrons that appear to have opposing three sided pyramids. It also forms modified rhombohedrons, prismatic and twinned crystals as discribed above. ● Cleavage is perfect in three directions, forming prisms. ● Fracture is uneven to splintery. ● Hardness is 2 - 2.5. ● Specific Gravity is approximately 8.1+ (very heavy for a non-metallic mineral) ● Streak is red ● Associated Minerals are realgar, pyrite, dolomite, quartz, stibnite and mercury. ● Other Characteristics: silghtly sectile and crystals can be striated. ● Notable Occurances include Almaden, Spain; Idria, Serbia; Hunan Prov., China and California, Oregon, Texas, and Arkansas, USA. http://mineral.galleries.com/minerals/sulfides/cinnabar/cinnabar.htm (1 of 2) [8/2/2001 2:51:56 PM] CINNABAR (Mercury Sulfide) ● Best Field Indicators are crystal habit, density, cleavage, softness and color. Minerals | By_Name | By_Class | By_Groupings | Search | Sulfides Copyright © 1995,1996 by Amethyst Galleries, Inc. http://mineral.galleries.com/minerals/sulfides/cinnabar/cinnabar.htm (2 of 2) [8/2/2001 2:51:56 PM] Amethyst Galleries' Mineral Gallery The Mineral Gallery A service of Amethyst Galleries,Inc., "The First Internet Rock Shop!" MINERALS The Mineral Gallery is a constantly growing collection of mineral descriptions, images, and specimens (see our new specimens last updated By Name 25-May-2001, and What's New last updated 02-Dec-2000), together with A list of minerals in alphabetical order several ways of accessing these descriptions. The descriptions include searchable mineralogical data, plus other information of interest to students By Class and rock hounds! The inline GIF images (size about 10k) usually are linked Elements, Oxides, to larger JPEG images (size about 50k). Carbonates, etc. To purchase our specimens, select a mineral using any of the indexes, and Interesting Groupings then choose the Specimens link (or use the specimens shortcut on the Gemstones, Birthstones, By_Name index). This will usually display several available specimens, etc. some of which may be marked Sold or Sale Pending, but others will have an Order link which will add that specimen to your currently pending order. Full Text Search You may Cancel or Complete your order then, or after further browsing. Mineral identification by Generally, you will return here to review your order (if any), and from keyword searching there you will Cancel or Complete it. Shipping is normally the next business day (with 3 to 5 days delivery time for most North America destinations). For more information (including our address), see the page How to Buy also browse our From Us. Gift Gallery and our Do you have comments, suggestions, or requests about this service? Jewelry Gallery Please provide us with feedback; we would appreciate it! Our phone number is (937)266-7625. You may also contact us by e-mail as follows: ● specimens or sales info: [email protected] ● mineralogical questions or comments: [email protected] ● comments for the owners: [email protected] ● comments for the webmaster: [email protected] A few other links of interest: To see the entire list of the mineral species currently in our database, see this version of Minerals by Name (over 50kb, and just text!). To learn more about this service, check out our About page! To learn a little about our company, see the Amethyst Galleries page. And to learn who is responsible for the Mineral Gallery, see our credits http://mineral.galleries.com/default.htm (1 of 2) [8/2/2001 2:51:58 PM] Amethyst Galleries' Mineral Gallery page! Amethyst Galleries is not just about Minerals anymore! Here is our List of Galleries Minerals (that's this page) Southwestern Contemporary Sterling Silver Jewelry Gifts (including bookends made from agate and other minerals) Copyright ©1995-1998 by Amethyst Galleries, Inc. Unless otherwise noted, all descriptions, images, and programs are the property of Amethyst Galleries, Inc., and may not be copied for commercial purposes. Permission to copy descriptions and images is granted for personal and educational use only. All such copies must include this copyright notice and explicit references to this URL. http://mineral.galleries.com/default.htm (2 of 2) [8/2/2001 2:51:58 PM] Minerals by Name Minerals | By_Class | By_Groupings | Search Minerals by Name A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Choose a letter of the alphabet from the above list, and the minerals will be listed that begin with that letter. The mineral name itself is a link to the description of that mineral species, while the number to the left is the approximate count of the number of specimens currently available for sale of that species, and is also a direct link to the list of specimens. The count may be zero, but if the link is active then there are specimens available to view, just not currently for sale. If the count is zero and the link is not active, then there are not even any specimens in the database. Remember, there may be more than one page of specimens, so you may need to select Next Page one or more times to see the entire list of available specimens. This page also available in a frames version http://mineral.galleries.com/minerals/by-name.htm [8/2/2001 2:51:58 PM] The Mineral Gallery - Minerals by Class Minerals By Class Minerals can be organized, mainly according to their chemistry, into the following classes MINERALS ● Elements Class: The Metals and their alloys and the Nonmetals. By Name ● Sulfides Class: The Sulfides, the Selenides, the Tellurides, the A list of minerals in Arsenides, the Antimonides, the Bismuthinides and the Sulfosalts. alphabetical order ● Halides Class: The Fluorides, the Chlorides and the Iodides. By Class ● Oxides Class: The Oxides and the Hydroxides. Elements, Oxides, ● Carbonates Class: The Carbonates, the Nitrates and the Borates. Carbonates, etc. ● Sulfates Class: The Sulfates, the Sulfites, the Chromates, the Interesting Groupings Molybdates, the Selenates, the Selenites, the Tellurates, the Tellurites Gemstones, Birthstones, and the Tungstates (or the Wolframates). etc. ● Phosphates Class: The Phosphates, the Arsenates, the Vanadates and Full Text Search the Antimonates. Mineral identification by ● Silicates Class: The Silicates (the largest class). keyword searching ● The Organics Class: The "Minerals" composed of organic chemicals! ● The Mineraloids: The "Minerals" that lack crystal structure! Copyright ©1998 by Amethyst Galleries, Inc. http://mineral.galleries.com/minerals/by_class.htm [8/2/2001 2:51:59 PM] Mineral Gallery - Interesting Mineral Groupings Interesting Groupings of Minerals Choose from these groups MINERALS ● Birthstones: Lists the commonly recognized birthstones. By Name ● Gemstones: Includes gem varieties of minerals. A list of minerals in ● Biblestones: Minerals referenced in the Bible. alphabetical order ● Significant Element: Includes ores of metals such as lead or By Class Copper. Elements, Oxides, ● Meteoritic Minerals: Minerals found in meteorites. Carbonates, etc. ● Minerals that Twin: These minerals may form twinned crystals. Interesting Groupings ● Fluorescent Minerals: These glow in ultraviolet light. Gemstones, Birthstones, ● Minerals by Locality: Some notable mineral sites and the etc. minerals found there. Full Text Search ● Natural Groupings: Natural associations such as pegmatities, Mineral identification by vugs, etc. keyword searching ● Radioactive Minerals: Minerals that emit high energy radiation. ● Minerals by Class: Elements, Oxides, Silicates, etc. ● Minerals by Name: Alphabetical listing (one very long list, over 50k). Copyright ©1997,1998,1999,2000 by Amethyst Galleries, Inc. http://mineral.galleries.com/minerals/interest.htm [8/2/2001 2:52:00 PM] Mineral Search Mineral Search A Glossary of Terms is available which describes the consistent set of terms used in this mineral database, and offers suggestions for effective searching. Try to use several independent descriptive words, since "very heavy" will also match "heavy" and "very soft". Also, don't use negatives (such as "not
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  • Pyrostilpnite Ag3sbs3 C 2001-2005 Mineral Data Publishing, Version 1

    Pyrostilpnite Ag3sbs3 C 2001-2005 Mineral Data Publishing, Version 1

    Pyrostilpnite Ag3SbS3 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic. Point Group: 2/m. Crystals tabular {010} giving flat rhombic forms; also laths by elongation k [001], to 1 mm; as subparallel sheaflike aggregates. Twinning: On {100} with (100) as composition plane. Physical Properties: Fracture: Conchoidal. Tenacity: Somewhat flexible in thin plates. Hardness = 2 VHN = 95–115, 107 average (100 g load). D(meas.) = 5.94 D(calc.) = 5.97 Optical Properties: Transparent. Color: Hyacinth-red; lemon-yellow by transmitted light. Streak: Yellow-orange. Luster: Adamantine. Optical Class: Biaxial (+). Orientation: Y = b; X ∧ c = 8–11◦. α = Very high. β = Very high. γ = Very high. R1–R2: (400) 36.3–36.9, (420) 36.3–36.5, (440) 36.1–35.8, (460) 35.7–35.1, (480) 34.9–34.2, (500) 33.9–33.2, (520) 32.3–31.8, (540) 30.8–30.3, (560) 29.6–29.2, (580) 28.6–28.2, (600) 27.8–27.5, (620) 27.1–26.7, (640) 26.6–26.2, (660) 26.2–25.8, (680) 25.9–25.4, (700) 25.6–25.2 ◦ 0 Cell Data: Space Group: P 21/c. a = 6.84 b = 15.84 c = 6.24 β = 117 09 Z=4 X-ray Powder Pattern: Pˇr´ıbram, Czech Republic. 2.85 (100), 2.65 (50), 2.42 (50), 1.895 (50b), 1.887 (50b), 1.824 (20b), 1.813 (20b) Chemistry: (1) (2) (3) Ag 59.44 59.7 59.76 Sb 22.30 23.7 22.48 S 18.11 16.8 17.76 Total 99.85 100.2 100.00 (1) St.
  • Acanthite Ag2s C 2001-2005 Mineral Data Publishing, Version 1 Crystal Data: Monoclinic, Pseudo-Orthorhombic

    Acanthite Ag2s C 2001-2005 Mineral Data Publishing, Version 1 Crystal Data: Monoclinic, Pseudo-Orthorhombic

    Acanthite Ag2S c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Monoclinic, pseudo-orthorhombic. Point Group: 2/m. Primary crystals are rare, prismatic to long prismatic, elongated along [001], to 2.5 cm, may be tubular; massive. Commonly paramorphic after the cubic high-temperature phase (“argentite”), of original cubic or octahedral habit, to 8 cm. Twinning: Polysynthetic on {111}, may be very complex due to inversion; contact on {101}. Physical Properties: Cleavage: Indistinct. Fracture: Uneven. Tenacity: Sectile. Hardness = 2.0–2.5 VHN = 21–25 (50 g load). D(meas.) = 7.20–7.22 D(calc.) = 7.24 Photosensitive. Optical Properties: Opaque. Color: Iron-black. Streak: Black. Luster: Metallic. Anisotropism: Weak. R: (400) 32.8, (420) 32.9, (440) 33.0, (460) 33.1, (480) 33.0, (500) 32.7, (520) 32.0, (540) 31.2, (560) 30.5, (580) 29.9, (600) 29.2, (620) 28.7, (640) 28.2, (660) 27.6, (680) 27.0, (700) 26.4 ◦ Cell Data: Space Group: P 21/n. a = 4.229 b = 6.931 c = 7.862 β =99.61 Z=4 X-ray Powder Pattern: Synthetic. 2.606 (100), 2.440 (80), 2.383 (75), 2.836 (70), 2.583 (70), 2.456 (70), 3.080 (60) Chemistry: (1) (2) (3) Ag 86.4 87.2 87.06 Cu 0.1 Se 1.6 S 12.0 12.6 12.94 Total 100.0 99.9 100.00 (1) Guanajuato, Mexico; by electron microprobe. (2) Santa Lucia mine, La Luz, Guanajuato, Mexico; by electron microprobe. (3) Ag2S. Polymorphism & Series: The high-temperature cubic form (“argentite”) inverts to acanthite at about 173 ◦C; below this temperature acanthite is the stable phase and forms directly.