Rock Collection

The EPS Rock Collection contains over 10,000 samples and is housed in rooms 314d and 312 of the Harvard Science Center.  The collection consists of the following:

Igneous, Metamorphic, and Sedimentary Rock Collection

Igneous and Metamorphic collections stored in room 314d (locked collection closet accessed from room 314), and Sedimentary collection is stored in blue glass fronted cases located at the in the hallway entrance to room 312).

Igneous Samples (drawers 1-56 in room 314d)

  • Basalt/Diabase: 4-11
  • Rhyolite/Andesite: 12-13
  • Gabbro/Diorite: 14-17
  • Granodiorite: 18
  • Granite: 19-36
  • Felsite: 37
  • Pyroxenite: 38
  • Anorthosite: 39
  • Trachyte: 40
  • Porphyry: 41-43
  • Syenite: 44-46
  • Kimberlite: 47
  • Tuff: 48
  • Pumice/Scoria: 49
  • Obsidian: 50-53
  • Contacts: 55-56

Metamorphic Samples (drawers 57-90 in room 314d)

  • Skarn/Granulite: 57
  • Serpentine/Talc Rock: 58
  • Phylite: 59-61
  • Slate: 62
  • Marble: 63-66
  • Quartzite: 67-69
  • Metaconglomerate: 70
  • Amphibolite: 71
  • Hornfel: 72
  • Eclogite: 75
  • Schist: 76-82
  • Gneiss: 83-90

Sedimentary Samples (drawers 1-70 in room 312)  

  • Limestone: 3-18
  • Concretions: 22
  • Carbonates: 23
  • Dolomite: 24
  • Calcareous Tufa: 25-26
  • Chalk: 29-30
  • Chert: 31
  • Clay: 32
  • Shale: 33-36
  • Mudstone/Siltstone: 42-43
  • Conglomerate: 45-50
  • Sandstone: 60-67
  • Graywacke: 68
  • Coal/Peat: 69-70

Ward's Rock Collection

Two igneous, metamorphic, and sedimentary rock sets.  One is for general use.  The second set is complete with matching thin sections and meant to exist as a permanent reference in the EPS collections.  Hence, specimens from the second complete set are for temporary loan only.  Both sets are located in room 314d.

Set # 1 (drawers 96-102 in room 314d)

  • Igneous: 96-98 (specimens 1-43)
  • Sedimentary: 98-100 (specimens 44-70)
  • Metamorphic: 100-102 (specimens 71-100)

Set # 2 (drawers 186-193 in room 314d)

  • Igneous: 186-188 (specimens 1-43)
  • Sedimentary: 188-190 (specimens 44-70)
  • Metamorphic: 190-192 (specimens 71-100)
  • Thin Sections: 192-193

EPS 101 Field Trip Collection

This collection consists of various rocks and accompanying thin sections.  This set is a permanent set for use only for temporarily loan.  This set is located in room 314d, in drawers 103-108. Includes various rock types with matching thin sections.

Geology 152 Field Trip Collection 

This collection consists of New England rocks and accompanying thin sections.  This set is a permanent set for use only for temporarily loan.  This set is located in room 314d, in drawers 113-126, and 132-144. Includes various rock types with matching thin sections.

Ray Siever Sedimentary Teaching Collection

Recently relocated in the Science Center. In the process of being properly organized and integrated.  Inquire about specifics if interested.