Density	Mineral / Material	Group
various sources	no guarantee
1.64 - 1.65	Mellite
1.77	Charlesite
1.80	Inderite
1.83 - 1.86	Kurnakovite
1.88 - 1.90	Thaumasite
1.9 - 2.3	Opal
1.93 - 2.4	Chrysocolla
2.20 - 2.23	Yugawaralite
2.2 - 2.4	Natrolite
2.21 - 2.23	Whewellite
2.21 - 2.31	Cavansite
2.22 - 2.28	Epistilbite	Zeolites
2.24 - 2.30	Analcime
2.25 - 2.29	Scolecite
2.27 - 2.33	Hackmanite	Sodalite
2.27 - 2.33	Sodalite	Sodalite
2.28 / 2.60?	Kovdorskite
2.28 - 2.3	Bikitaite
2.32 - 2.38	Moldavite
2.33	Tugtupite
2.33 - 2.37	Apophyllite
2.34 - 2.37	Hambergite
2.35 - 2.36	Nifontovite
2.36	Wavellite
2.38 - 2.45	Lazurite
2.39	Brucite
2.39 - 2.46	Petalite
2.4 - 2.5	Hauyne	Feldspar
2.4 - 2.9	Lapis Lazuli
2.42	Colemanite
2.44 - 2.50	Leucite
2.45	Carletonite
2.48 - 2.50	Poudretteite
2.48 - 2.51	Ussingite
2.50 - 2.62	Marialite
2.50 - 2.65	Lechatelierite / Libyanite
2.52	Shomiokite-(Y)
2.52 - 2.53	Milarite
2.53 - 2.56	Sanidine	Feldspar
2.54	Charoite
2.55 - 2.63	Adularia	Feldspar
2.55 - 2.75	Cordierite / Iolite
2.56 - 2.58	Amazonite	Feldspar
2.56 - 2.59	Orthoclase	Feldspar
2.56 - 2.62	Moonstone	Feldspar
2.57	Leifite
2.57 - 2.74	Scapolite
2.58 - 2.59	Bowenite
2.58 - 2.64	Carnelian	Quartz
2.58 - 2.64	Chalcedony	Quartz
2.58 - 2.64	Chrysoprase	Quartz
2.59 - 2.65	Heliotrope	Quartz
2.6 - 2.65	Agate	Quartz
2.6 - 2.65	Albite	Feldspar
2.6 - 2.7	Coral
2.6 - 2.7	Tiger's Eye	Quartz
2.6 - 2.8	Green Beryl	Beryl
2.6 - 2.8	Turquoise
2.6 - 2.8	Vanadium Beryl	Beryl
2.6 - 2.85	Ammolite
2.6 - 2.9	Morganite	Beryl
2.6 - 3.02	Clinochlore
2.61 - 2.63	Peristerite	Feldspar
2.62 - 2.66	Sunstone	Feldspar
2.63	Shortite
2.63 - 2.65	Amethyst	Quartz
2.63 - 2.92	Goshenite	Beryl
2.64 - 2.66	Oligoclase	Feldspar
2.64 - 2.83	Narsarsukite
2.65 - 2.69	Andesine	Feldspar
2.65 - 2.78	Pearls
2.66 - 2.80	Heliodor	Beryl
2.67 - 2.75	Aquamarine	Beryl
2.67 - 2.75	Red Beryl	Beryl
2.67 - 2.78	Emerald	Beryl