57

White, dusty fragments

Iron, arsenic and oxygen.

Scorodite

ICDD PDF 37-0468

Scorodite, FeAsO₄・2H₂O

58

Greenish fragments

Iron, sulphur and oxygen, with sodium as minor element

Copiapite

ICDD PDF 71-1546 and sodium iron sulfate

ICDD PDF 29-1218

Copiapite, Fe₅(SO₄)₆(OH)₂・20H₂O

sodium iron sulphate, Na₆Fe(SO₄)₄

Original sample was Copiapite, slightly altered with formation of iron sulphates

59

Dark grey fragments of metallic lustre

Sulphur and antimony

Stibnite

ICDD PDF 74-1046

Stibnite, Sb₂S₃

60

Light grey fragments with metallic lustre

Arsenic, nickel, cobalt and minor amount of sulphur and iron

Skutterudite

ICDD PDF 25-0118

Ni-Skutterudite, (Co, Ni, Fe)As₃

61

A very dark, black powder and fragments

Manganese and oxygen, small amount of calcium and magnesium

The spectrum shows a very low degree of crystallinity.

WAD (“Psilomelane”)

A mix of manganese oxide

62

Apple green fragments with crusty appearance

Nickel and oxygen, with small amount of arsenic

The spectrum shows a very low degree of crystallinity.

Nepouite

The sample is the Ni homologous of Chrysocolla, a mix of various Ni-silicate with different hydration degree and low crystallinity, deriving from Ni-sulphide alteration

63

Greyish-metallic fragments

Nickel and arsenic

Nickeline

ICDD PDF 75-0603

Nickeline, NiAs

64

Greyish-black fragment, crystalline

Nickel, antimony, sulphur, arsenic

Ulmannite

ICDD PDF 83-1221

As-Ulmannite, NiSbS

65

Missing sample

66

Angular gold-yellow vitreous fragments

Sulphur and zinc

Sphalerite

ICDD PDF 65-0309

Sphalerite, ZnS

67

Angular blackish fragments with submetallic lustre

Sulphur, zinc and minor iron

Ferroan Sphalerite

ICDD PDF 89-4938

Iron-rich sphalerite, (Zn,Fe)S

The iron rich variety of sphalerite often known as “marmatite”

68

White sub-hyaline fragments with traces of cleavage

Zinc, oxygen and carbon

Smithsonite

ICDD PDF 83-1765

Smithsonite, ZnCO₃

69

Blackish crystalline fragments with good pseudo-cubic cleavage

Lead and sulphur

Galena

ICDD PDF 65-0135

Galena, PbS

70

Black fragments without cleavage

Sulphur, antimony and minor iron

Berthierite

ICDD PDF 24-0509 Iron sulphide

ICDD PDF 65-1211

Iron sulfate

ICDD PDF 73-1057

Berthierite, FeSb₂S₄

A mixing of Berthierite and minor Pyrite, oxidized during time

71

Hyaline whitish fragments with cleavage traces and natural flat surfaces

Lead, phosphor, oxygen and minor amount of calcium,

Pyromorphite

ICDD PDF 73-1729

Pyromorphite, Pb₅(PO₄)₃Cl

72

White fragments

Lead, oxygen and carbon

Cerussite

ICDD PDF 76-2056

Cerussite, PbCO₃

73

Orange crystalline fragments

Lead, chromium and oxygen

Crocoite

ICDD PDF 73-1332

Crocoite, PbCrO₄

75

Brown-reddish crystalline fragments

Tin and oxygen

Cassiterite

ICDD PDF 77-0447

Cassiterite, SnO

76

Elongated steel-greyish fragments

Bismuth and sulphur

Bismutinite

ICDD PDF 65-3884

Bismutinite, Sb₂S₃