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Mohs 8 minerals

The reference mineral for 8 is topaz.

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36 minerals · Mohs 8 minerals
VarietyAquamarine specimen
Aquamarine Be₃Al₂Si₆O₁₈
SilicateHexagonalMohs 7.5–8
Beryl specimen
Beryl Be₃Al₂Si₆O₁₈
SilicateHexagonalMohs 7.5–8
VarietyEmerald specimen
Emerald Be₃Al₂Si₆O₁₈
SilicateHexagonalMohs 7.5–8
Topaz specimen
Topaz Al₂SiO₄F₂
SilicateOrthorhombicMohs 8
Armenite specimen
Armenite BaCa₂(Al₆Si₉)O₃₀·2H₂O
SilicateOrthorhombicMohs 7–8
C
Chukochenite (Li₀.₅Al₀.₅)Al₂O₄
Oxides & HydroxideOrthorhombicMohs 8
Coesite specimen
Coesite SiO₂
SilicateMonoclinicMohs 7–8
Dumortierite specimen
Dumortierite AlAl₆BSi₃O₁₈
SilicateOrthorhombicMohs 7–8.4
Eskolaite specimen
Eskolaite Cr₂O₃
Oxides & HydroxideHexagonalMohs 8
Ferronigerite-2N1S specimen
Ferronigerite-2N1S (Al,Fe,Zn)₂(Al,Sn)₆O₁₁(OH)
Oxides & HydroxideHexagonalMohs 8–9
F
Ferrotaaffeite-6N'3S BeFe²⁺₂Al₆O₁₂
Oxides & HydroxideHexagonalMohs 8–8.5
Gahnite specimen
Gahnite ZnAl₂O₄
Oxides & HydroxideCubicMohs 7.5–8
VarietyGoshenite specimen
Goshenite Be₃Al₂Si₆O₁₈
SilicateHexagonalMohs 7.5–8
VarietyHeliodor specimen
Heliodor Be₃Al₂Si₆O₁₈
SilicateHexagonalMohs 7.5–8
Hercynite specimen
Hercynite Fe²⁺Al₂O₄
Oxides & HydroxideCubicMohs 7.5–8
Hibonite specimen
Hibonite CaAl₁₂O₁₉
Oxides & HydroxideHexagonalMohs 7.5–8
Karelianite specimen
Karelianite V₂O₃
VanadateHexagonalMohs 8–9
Lakargiite specimen
Lakargiite CaZrO₃
Oxides & HydroxideOrthorhombicMohs 8–9
Londonite specimen
Londonite CsBe₄Al₄(B₁₁Be)O₂₈
Oxides & HydroxideCubicMohs 8
M
Magnesio-lucchesiite CaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃O
SilicateHexagonalMohs 7–8
M
Magnesionigerite-2N1S (Mg,Al,Zn)₂(Al,Sn)₆O₁₁(OH)
Oxides & HydroxideHexagonalMohs 8
Magnesiotaaffeite-6N'3S specimen
Magnesiotaaffeite-6N'3S Mg₂BeAl₆O₁₂
Oxides & HydroxideHexagonalMohs 8–8.5
M
Melliniite (Ni,Fe)₄P
Native ElementCubicMohs 8–8.5
M
Mengxianminite Ca₂Sn₂Mg₃Al₈[(BO₃)(BeO₄)O₆]₂
BorateOrthorhombicMohs 8
VarietyMorganite specimen
Morganite Be₃Al₂Si₆O₁₈
SilicateHexagonalMohs 7.5–8
M
Mukhinite Ca₂(Al₂V³⁺)[Si₂O₇][SiO₄]O(OH)
SilicateMonoclinicMohs 8
Nsutite specimen
Nsutite Mn²⁺ₓMn⁴⁺₁₋ₓO₂₋₂ₓ(OH)₂ₓ
Oxides & HydroxideMohs 6.5–8.5
Painite specimen
Painite CaZrAl₉O₁₅(BO₃)
BorateHexagonalMohs 8
Pezzottaite specimen
Pezzottaite CsLiBe₂Al₂Si₆O₁₈
SilicateHexagonalMohs 8
Phenakite specimen
Phenakite Be₂(SiO₄)
SilicateHexagonalMohs 7.5–8
VarietyRed Beryl specimen
Red Beryl Be₃Al₂Si₆O₁₈
SilicateHexagonalMohs 7.5–8
Rhodizite specimen
Rhodizite KBe₄Al₄(B₁₁Be)O₂₈
Oxides & HydroxideCubicMohs 8
Schiavinatoite specimen
Schiavinatoite Nb(BO₄)
BorateTetragonalMohs 8
Spinel specimen
Spinel MgAl₂O₄
Oxides & HydroxideCubicMohs 7.5–8
Swedenborgite specimen
Swedenborgite NaBe₄Sb⁵⁺O₇
Oxides & HydroxideHexagonalMohs 8
T
Trembathite Mg₃B₇O₁₃Cl
HalideHexagonalMohs 6–8