Locality: Canterbury Soapstone Quarry, Canterbury, NH
Specimen Size: 4 cm specimen with banded seam of bladed, bronze-colored anthophyllite crystals, two views.
Field Collected: Tom Mortimer - 2012
Catalog No.:
Notes: Dianne R. Nielson's Dartmouth College Doctorate Thesis Metamorphic Diffusion in New Hampshire Soapstone Bodies and Flecky Gneisses, 1974, notes the presence of anthophyllite veins occurring within the talc body at Canterbury, NH. A qualitative EDS analysis indicated my samples collected in 2012 were the anthophyllite referenced in Nielson's thesis.
Locality: Canterbury Soapstone Quarry, Canterbury, NH
Specimen Size: 4 cm specimen with banded seam (in talc) of bladed, fresh-unweathered, anthophyllite crystals.
Field Collected: Tom Mortimer - 2012
Catalog No.:
Notes:
Locality: Pierce Mine, Chesterfield, NH
Specimen Size: 7 mm "tree" of malachite crystals.
Field Collected: Tom Mortimer - 1998
Catalog No.: 1094
Notes:
Locality: Palermo #1 Mine, N. Groton, NH
Specimen Size: 1.5 cm field of view
Field Collected: Tom Mortimer
Catalog No.: 214
Notes: A zoom view of specimen 214 (the NH display case specimen), autunite on smoky quartz.
Locality: Rt. 101 - 101A road cut, Amherst, NH
Specimen Size: 8 mm field of view. Adularia (pink) with epidote (green), babingtonite (black) and prehnite (white fan)
Field Collected: Tom Mortimer
Catalog No.: u320
Notes:
Locality: Folsom Brook Locale ('the gulch"), Ossipee, NH
Specimen Size: 2.8 cm specimen
Field Collected: Tom Mortimer
Catalog No.: 398
Notes:
Locality: Rt. 110 road cut, Dummer, NH
Specimen Size: 4 mm octahedral pyrite crystal on post
Field Collected: Tom Mortimer
Catalog No.: p/o 872
Notes: 10 image stack processed with Helicon Focus
Locality: Table Mtn., Albany, NH
Specimen Size: 4.8 cm zoned crystal
Field Collected: Tom Mortimer
Catalog No.: NC
Notes:
Locality: Hurricane Mtn., Conway, NH
Specimen Size: 12 mm field of view
Field Collected: Tom Mortimer
Catalog No.: 576
Notes: I have wondered for many years if these black hair specimens (I collected many) are arfvedsonite, riebeckite, or perhaps aegirine. All are possibilities from the Hurricane Mtn. locality. A qualitative EDS analysis did not resolve the ambiguity (the sodium response of EDS detector is low and not indicative of the true sodium proportion). Both arfvedsonite and riebeckite have a Fe:Si ratio of 5:8. Aegrine is lower, 4:8 (1:2). The plot appears to support a 5:8 ratio. For the present I will file this with the arfvedsonite gallery.
A 16 image stack processed with Helicon Focus.
Locality: Red Hill, near Horne Quarry, Moultonborough, NH
Specimen Size: 3 mm field of view
Field Collected: Tom Mortimer
Catalog No.: NC
Notes: Kaolinite ? pale-orange, with zircon (glassy tan), hastingsite (black), titanite (small yellow - upper left-center), and feldspar (white). I have been searching for several species reported from the Red Hill nepheline-syenite for several years: wholerite, rosenbushite, and cancrinite. I am not aware of any Red Hill examples of these species for comparison. I have analysis done when I spot things outside my previous observations. This pale orange material analyzed to be a simple aluminum silicate, ( EDS analysis plot). It is quite soft, hardness 4 or less. Kaolinite (and polymorphs) and allophane fit this chemistry and hardness. Given the abundance of feldspar present, kaolinite would be more likely. However, for allophane, the Al:Si ratio is 2:1 where-as for kaolinite the ratio is 2:2, so the EDS plot would seem to favor allophane. For the present I will file this in the kaolinite gallery.