登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo Galleries今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Bonazziite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About BonazziiteHide

Formula:
As4S4
Colour:
Orange
Lustre:
Resinous
Hardness:
Specific Gravity:
3.542 (Calculated)
Crystal System:
Monoclinic
Name:
after Paola Bonazzi (b. 1960), Full Professor in Mineralogy at the University of Florence, in recognition of her seminal contributions to the study of arsenic sulfides and their alteration induced by exposure to light.
Polymorph of:
A continuous series exists between bonazziite (As8S8) and alacranite (As8S9). Compare anorpiment, dimorphite, duranusite, orpiment, pararealgar, realgar, uzonite.

Was first discovered as natural β-As4S4, but went unnamed.

Association includes non-stoichiometric 'Unnamed (As sulfides)'.

The structure is based on covalently bonded As4S4 cage-like molecules (identical to those in realgar), with each As atom linking to one another As and two S atoms. The molecules are held together by van der Waals forces.

As realgar, bonazziite alters to pararealgar in polychromatic and monochromatic lights.


Classification of BonazziiteHide

Approved
Approval Year:
2013
2.FA.

2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
A : With As, (Sb), S

Physical Properties of BonazziiteHide

Resinous
Transparency:
Opaque
Colour:
Orange
Comment:
colour is slightly paler and more yellowish than realgar
Streak:
Dark orange
Hardness:
2½ on Mohs scale
Hardness:
VHN15=70 kg/mm2 - Vickers
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.542 g/cm3 (Calculated)

Optical Data of BonazziiteHide

Type:
Anisotropic
Anisotropism:
strong greyish to light-blue rotation tints.
Reflectivity:
9.9nmR=9.%
19.1nmR=2.2 (471.1 nm%
18.8nmR=1.3 (548.3 nm%
17.8nmR=9.7 (586.6 nm%
nmR=8.9 (652.3 nm%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 9.7 (586.6 nm%.
Internal Reflections:
orange to red
Pleochroism:
Visible
Comments:
orange to light red

Chemical Properties of BonazziiteHide

Formula:
As4S4

Crystallography of BonazziiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 9.956(1) Å, b = 9.308(1) Å, c = 8.869(1) Å
β = 102.55(2)°
Ratio:
a:b:c = 1.07 : 1 : 0.953
Unit Cell V:
802.3 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.74Å(100)
4.86Å(30)
4.10Å(60)
3.92Å(50)
3.12Å(60)
2.95Å(50)
2.86Å(80)
2.371Å(30)
Comments:
From Type Description.

Geological EnvironmentHide

Geological Setting:
Associated with low temperature epithermal Hg-As-Sb deposits, vapor deposited environments - burning coal or volcanic.

Type Occurrence of BonazziiteHide

General Appearance of Type Material:
crystals up to 100 μm
Place of Conservation of Type Material:
Type material is deposited in the mineralogical collection of the Museo di Storia Naturale, Sezione di Mineralogia e Litologia, Universita` di Firenze, Via La Pira 4, I-50121, Firenze (Italy), catalogue number 47534/G
Geological Setting of Type Material:
Mercury-antimony low-temperature hydrothermal deposit.
Associated Minerals at Type Locality:

Synonyms of BonazziiteHide

Relationship of Bonazziite to other SpeciesHide

Common AssociatesHide

Related Minerals - Nickel-Strunz GroupingHide

2.FA.AnorpimentAs2S3Tric. 1 : P1
2.FA.05DuranusiteAs4SOrth. mmm (2/m 2/m 2/m) : Pmna
2.FA.10DimorphiteAs4S3Orth. mmm (2/m 2/m 2/m) : Pnma
2.FA.15bPararealgarAs4S4Mon. 2/m : P21/b
2.FA.15aRealgarAs4S4Mon. 2/m
2.FA.15dUM1970-18-S:AsAs4S4Mon. 2/m : B2/b
2.FA.20AlacrániteAs8S9Mon. 2/m : P2/b
2.FA.25UzoniteAs4S5Mon.
2.FA.30LaphamiteAs2Se3Mon. 2/m
2.FA.30OrpimentAs2S3Mon. 2/m
2.FA.35GetchelliteAsSbS3Mon. 2/m : P21/b
2.FA.40Wakabayashilite[(As,Sb)6S9][As4S5]Orth. mm2 : Pna21

Other InformationHide

Notes:
Raman bands [cm-1]: As–As/As–S stretching (187, 343, 352, 362); As–S–As/As–As–S/S–As–S/As–As–As
bending (164, 217); 275 (from pararealgar formed during laser-induced alteration)
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BonazziiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Bindi, L., Pratesi, G., Muniz- Miranda, M., Zoppi, M., Chelazzi, L., Lepore, G.O. and Menchetti, S. (2014) Bonazziite, IMA 2013-141. CNMNC Newsletter No. 20, June 2014, page 554; Mineralogical Magazine, 78, 549-558.
Bindi, L., Pratesi, G., Muniz-Miranda, M., Zoppi, M., Chelazzi, L., Lepore, G. O., & Menchetti, S. (2015). From ancient pigments to modern optoelectronic applications of arsenic sulfides: bonazziite, the natural analogue of β-As4S4 from Khaidarkan deposit, Kyrgyzstan. Mineralogical Magazine, 79(1), 121-131.

Internet Links for BonazziiteHide

Localities for BonazziiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Chile (TL)
 
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga mining district
          • Alacrán
American Mineralogist 55,1338(1970)
Czech Republic
 
  • Hradec Králové Region
    • Trutnov District
      • Radvanice
Bindi, L., Pratesi, G., Muniz-Miranda, M., Zoppi, M., Chelazzi, L., Lepore, G. O., & Menchetti, S. (2015). From ancient pigments to modern optoelectronic applications of arsenic sulfides: bonazziite, the natural analogue of β-As4S4 from Khaidarkan deposit, Kyrgyzstan. Mineralogical Magazine, 79(1), 121-131.
France
 
  • Auvergne-Rhône-Alpes
    • Loire
      • Saint-Etienne
        • La Ricamarie
http://www.mindat.org/mesg-6-119758.html
Kyrgyzstan (TL)
 
  • Batken Region
Bindi, L., Pratesi, G., Muniz- Miranda, M., Zoppi, M., Chelazzi, L., Lepore, G.O. and Menchetti, S. (2014) Bonazziite, IMA 2013-141. CNMNC Newsletter No. 20, June 2014, page 554; Mineralogical Magazine, 78, 549-558.
Papua New Guinea
 
  • New Ireland Province
    • Lihir Island area
Can Min 39 (3), 2001, 809-818
Russia
 
  • Kamchatka Krai
Bindi, L., Pratesi, G., Muniz-Miranda, M., Zoppi, M., Chelazzi, L., Lepore, G. O., & Menchetti, S. (2015). From ancient pigments to modern optoelectronic applications of arsenic sulfides: bonazziite, the natural analogue of β-As4S4 from Khaidarkan deposit, Kyrgyzstan. Mineralogical Magazine, 79(1), 121-131
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.3.29 20:44:06 Page generated: 2020.2.6 09:42:55
Go to top of page