Matter
Name
Pigment Bordezac facies D (Pig_0160_D_601), powder (grains inf. 160µm)
Family
mineral
Parent matter
Pigment Bordezac facies D (PIG_0160_D), hematite-rich vein
Level
from laboratory repository
Origins
natural terrestrial
Provider
Pigmenthothèque - EDYTEM
Provider reference code
Bordezac < 160 µm – Pig_0160_D_601 (2016-027)
Local reference code
Pig_0160_D601_Bordezac-inf160
Body name
Earth
Terrain type
mineral surface
Place
Road D51, SE Bordezac (Gard) , Occitanie , France

Coordinates

System
WGS84
Position type
point
Geolocation
Point Latitude Longitude Altitude
#1 44.3104° 4.0761°
Comments
outcrop near the road
Preparation
sieved fraction
Method
crushed and sieved with a mesh of 160 µm
Storage condition
room temperature and conditions
Phase type
solid
Component type (group)
superficial deposit (chemical deposit)
Comments
Hydrothermal mineralization in an arkosic sandstone bank - Era: Mesozoic, Trias, Trias series, inferior (?) and middle trias level
Shape
very fine dark red-bordeaux powder
Texture
pulverulent
Type of porosity
particulate
Density
0.98 $\pm$ 0.08 $g.cm^{-3}$
Texture
compact
Grain density
0.98 $\pm$ 0.08 $g.cm^{-3}$
Grain sizes
Grains Size min Size max Size median Size width Size mass fraction Grain shape
#1 0.0 ${\mu}m$ 160.0 ${\mu}m$ 1.0 equant
Size distribution
possibly large fraction below 50-100 µm
Size method
sieving with mesh of 160 µm
Comments
density varies with the degree of settlement
Oxides
Formula $SiO_{2}$ $Al_{2}O_{3}$ $Fe_{2}O_{3}$ $MnO$ $MgO$ $CaO$ $Na_{2}O$ $K_{2}O$ $TiO_{2}$ $P_{2}O_{5}$
Mass fraction (%) 13.56 6.73 74.79 0.083 0.34 0.07 0.015 1.96 0.18 0.14
Oxides comments
contain K (1.96% in oxide) and small impurity of P, Ti, Na, Ca, Mg, Mn (0.83% in oxides), fire loss: 2.3%
Number
5
Mode of mixing
homogeneous mixing
Materials
  Name Arrangement Mass (g) Mass fraction Abundance comments
Quartz grains embeded in a ferric matrix (hematite) 0.05 Assumed mass fraction = cross section fraction in raw material
Muscovite grains embeded in a ferric matrix (hematite) 0.04 $\pm$ 0.01 < 5%. Assumed mass fraction = cross section fraction in raw material
Xenotime-(Y) grains embeded in a ferric matrix (hematite) 0.01 <1%. Assumed mass fraction = cross section fraction in raw material
Baryte grains embeded in a ferric matrix (hematite) < 1%. not detected with DRX
Hematite ferric matrix of hematite) > 50%