Matches in DBpedia 2014 for { ?s <http://dbpedia.org/property/birefringence> ?o. }
- Brianyoungite birefringence "δ = 1.635".
- Brochantite birefringence "δ = 0.072".
- Brockite birefringence "δ = 0.015".
- Bromargyrite birefringence "δ = 0.000".
- Brookite birefringence "δ = 0.117".
- Brownmillerite birefringence "δ = 0.080".
- Brucite birefringence "0.02".
- Brushite birefringence "δ = 0.012".
- Buddingtonite birefringence "δ = 0.004".
- Bultfonteinite birefringence "δ = 0.010".
- Bursaite birefringence "Weak in air, stronger in oil.".
- Bustamite birefringence "Dispersion r < v weak to strong".
- Bustamite birefringence "δ = 0.013 - 0.015".
- Bystrite birefringence "δ = 0.076".
- Bytownite birefringence "δ = 0.010 - 0.011".
- Bílinite birefringence "δ = 0.009 - 0.011".
- Cabalzarite birefringence "δ = 0.060".
- Cacoxenite birefringence "δ = 0.060".
- Calciborite birefringence "δ = 0.075".
- Calcite birefringence "δ = 0.154 – 0.174".
- Caledonite birefringence "δ = 0.091".
- Campigliaite birefringence "δ = 0.070".
- Cancrinite birefringence "δ = 0.012 - 0.025".
- Carbonado birefringence "None".
- Carletonite birefringence "δ = 0.004".
- Carlosruizite birefringence "δ = 0.013".
- Carnallite birefringence "0.027".
- Carnotite birefringence "δ = 0.200".
- Carpathite birefringence "δ = 0.290 - 0.370".
- Carpholite birefringence "δ = 0.020".
- Caryopilite birefringence "δ = 0.026 to 0.030".
- Cassiterite birefringence "δ = 0.103".
- Cavansite birefringence "δ = 0.009".
- Celestine_(mineral) birefringence "δ = 0.011".
- Celsian birefringence "0.014".
- Cerite birefringence "δ = 0.010".
- Cerussite birefringence "δ = 0.273".
- Cervantite birefringence "δ = 0.100".
- Chaidamuite birefringence "δ = 0.056".
- Chalcanthite birefringence "δ = 0.029".
- Chambersite birefringence "δ = 0.012".
- Charoite birefringence "δ = 0.009".
- Chesterite birefringence "δ = 0.023".
- Childrenite birefringence "δ = 0.027 - 0.042".
- Chloritoid birefringence "δ = 0.010".
- Chlorocalcite birefringence "weak".
- Chondrodite birefringence "0.027".
- Chrysocolla birefringence "δ = 0.023 - 0.050".
- Chrysotile birefringence "0.008".
- Chvaleticeite birefringence "δ = 0.049".
- Cinnabar birefringence "δ = 0.351".
- Claudetite birefringence "δ = 0.140".
- Clinohumite birefringence "+0.028".
- Clinozoisite birefringence "δ = 0.006 - 0.011".
- Clintonite birefringence "δ = 0.012 - 0.015".
- Coccinite birefringence "0.193".
- Coconinoite birefringence "δ = 0.040".
- Coesite birefringence "+0.006".
- Coffinite birefringence "δ = 1.730".
- Colemanite birefringence "δ = 0.028".
- Collinsite birefringence "δ = 0.025".
- Combeite birefringence "δ = 0.000".
- Conichalcite birefringence "δ = 0.023 - 0.046".
- Corkite birefringence "δ = 0.000".
- Cornubite birefringence "r>v".
- Cornwallite birefringence "δ = 0.040 - 0.060".
- Cotunnite birefringence "δ = 0.061".
- Creedite birefringence "δ = 0.024".
- Cristobalite birefringence "0.003".
- Crocoite birefringence "δ = 0.370".
- Cronstedtite birefringence "δ = 0.080".
- Cryolite birefringence "δ = 0.001".
- Cummingtonite birefringence "δ = 0.025 - 0.037".
- Cuprosklodowskite birefringence "δ = 0.010 - 0.012".
- Curite birefringence "0.09".
- Cuspidine birefringence "δ = 0.012".
- Cyanotrichite birefringence "δ = 0.067".
- Cymrite birefringence "δ = 0.010".
- Cyrilovite birefringence "δ = 0.033".
- Danburite birefringence "δ = 0.006".
- Datolite birefringence "δ = 0.044".
- Dawsonite birefringence "δ = 0.130".
- Descloizite birefringence "δ = 0.165".
- Devilline birefringence "δ=0.075".
- Diaboleite birefringence "δ = 0.130".
- Diamond birefringence "None".
- Diaspore birefringence "δ = 0.048".
- Dickite birefringence "δ = 0.005 - 0.006".
- Diopside birefringence "δ = 0.030".
- Dioptase birefringence "δ = 0.052".
- Dollaseite-(Ce) birefringence "δ = 0.018".
- Dolomite birefringence "δ = 0.179–0.181".
- Duftite birefringence "δ = 0.06".
- Dumortierite birefringence "δ = 0.027".
- Dundasite birefringence "δ = 0.147".
- Dypingite birefringence "δ = 0.0080".
- Dyscrasite birefringence "Very Weak".
- Edenite birefringence "δ = 0.025".
- Edingtonite birefringence "δ = 0.016".
- Ekanite birefringence "δ = 0.012".