25. Olivine. Europe.
26. Indicolite in lamellar feldspar. Chesterfield, Mass.
27. Brucite, (Gibbs,) silicious fluate of magnesia, in transition carbonate of lime, with graphite. Sussex county, N. J.
28. Sulphate of lime. Nova Scotia.
29. Serpentine. Hoboken, N. J.
30. Sulphuret of antimony, with crystals of carbonate of lime. Cornwall, England.
31. Chalcedony. Easthaven, Conn.
32. Arseniate of iron, in quartz. Connecticut.
33. Arseniate of cobalt, with iron pyrites and copper. Ireland.
34. Indurated talc. Hoboken, N. J.