148 BULLETIN 33, UNITED STATES NATIONAL MUSEUM. 



Rock milk. See Calcite. 



Rock oil. Sec Naphtha. 



Rock salt. See Halite. 



Rock soap. See Halloysite and Sapou- 



ite. 

 Rock ^vood. See Amphibole and Xylo- 



tile. 

 Rod magnesia. See Piedmontite. 

 Rod spitsglasmalm. See Kermesite. 

 ROEMERITE, OraiUch. (Fe, Zu)S04. 



Fei(S04)3+12 HjO. Monocliuic. 



Roesinerite. 

 ROBPPERITE, Brush. (Zu, Fe, Mu, 



Mg).2SiOs. Orthorhombic. 

 Roschgewachs. See Stephanite. 

 Roesnierite. See Eoemerite. 

 ROBSSLERITE, Blum. H2Mg2A8208+ 



12 HiO. Crystalline. 

 Roestone. See Calcite. 

 Roethel. See Hematite. 

 Rottisite. See Genthite. 

 Rogenstein. See Calcite. 

 Bogersite, J. L. Smith. Decomposition 



product of Samarskite. Massive. 

 Rohwand. See Ankeiite and Dolomite. 

 Rolled gold. See Gold. 

 Roman-red jasper. See Quartz. 

 Romanzovite. See Garnet. 

 Romanzowite. See Garnet. 

 Romeine. See Eomeite. 

 ROMEITE, Dana. CaoSbsOe- Tetrago- 

 nal. Antimonite de chaus ; antimo- 



nite of lime ; romeiue, Damour. 

 Roniersk alunsten. See Alunite. 

 ROSCOELITE, />7aAe. KaCMg, Fe)(Al2, 



V2).2Sii.2033+4 H2O. Crystalline. Ros- 



coelith. 

 Roscoelith. See Roscoelite. 

 Rose garnet. See Garnet. 

 Rose iron. See Meuaccanite. 

 Rose iron glance. Sec Hematite. 

 Rose opal. See Opal. 

 Rose quartz. See Quartz. 

 Rose spinel. See Spinel. 

 Rose-red spinel. See Spinel. 

 ROSELITE, Lcv!). (Ca, Co, Mg)2(;A804)2 



; 2 H2O. Triclinic. Roselith. 

 Roselith. See Roselite. 

 Rosellan. See Finite. 

 Bosenhmchlte, Brogoer. ZrOa, SiO-z, etc, 



Monoclinic. 

 Rosenite. See Chalcostibite. 

 Rosenquarz. See Quartz. 

 Rosenspath. See Rhodochrosite. 

 Rosgeel. See Realgar. 



Rosine. See Finite, 



Rosin tin. See Cassiterite. 



Rosil.e. See Chalcostibite and Finite. 



Rosso antico. See Calcite. 



Rosstrevorite. See Epidote. 



Rosszahn. See Ankerite. 



Rosterite. See Beryl. 



ROSTHORNITE, Bofer. C24H40. 



Rosy red quartz. See Quartz. 



Rothbleierz. See Crocoite. 



Rothbraunstein. See Rhodochrosite 

 and Rhodonite. 



Rotlibraunsteinerz. See Rhodochrosite 

 and Rhodonite. 



Rotheisenerz. See Hematite. 



Rotheisenrahm. See Hematite. 



Rotheisenstein. See Hematite. 



Rother braunstein. See Rhodochrosite 

 and Rhodonite. 



Rother braunsteinerz. See Rhodochro- 

 site and Rhodonite. 



Rother eisenrahm. See Hematite. 



Rother eisenstein. See Hematite. 



Rother eisenvitriol. See Botryogen. 



Rother erdkobald. See Erythrite, 



Rother glaskopf. See Hematite, 



Rother schorl. See Rutile and Tourma- 

 line. 



Rother vitriol. See Bieberite, 



Rothes bleyerz. See Crocoite, 



Rothes rauschgelb. See Realgar. 



Rothgiltigerz. See Froustite and Fyrar- 

 gyrite, 



Rothgiltigerz, dunkles. See Fyrar- 

 gyrite. 



Rothgiltigerz, lichtes. See Froustite 

 and Fyrargyrite. 



Rothgolderz, See Fyrargyrite, 



Rothgultigerz. See Froustite and Fy- 

 rargyrite, 



Rothgulden. See Fyrargyrite. 



Rothgylden, See Fyrargyrite. 



Rothkupfererz. See Cuprite. 



Rothmanganerz. See Rhodochrosite. 



Rothnickelkies. See Nicollite. 



Rothoffit. See Garnet. 



Rothspath. See Rhodochrosite, 



Rothspiessglaserz. See Kermesite, 



Rothspiessglanzerz. See Kermesite. 



Rothstein. See Rhodonite. 



Rothziukerz. See Zincite. 



Rotten-stone. 



Roubschite. See Magnesite. 



Rubace. See Quartz. 



Rubasse. See Quartz. 



