151–175

No.151

15458

Bt schist

W of Harbour, Railway Station, Banff

Bt zone

ppl 5 mm

xpl 5 mm

No.152

15462

St-Mca schist

W of Inverboyndie, Banff

St zone

ppl 5 mm

St in centre

xpl 5 mm

ppl 2 mm

xpl 2 mm

ppl 1 mm

xpl 1 mm

Twinned St

ppl 1 mm

ppl 1 mm

xpl 1 mm

No.153

15464

Grt-iferous Mca schist

W of Inverboyndie, Banff

Grt zone

ppl 5 mm

xpl 5 mm

ppl 5 mm

xpl 5 mm

ppl 2 mm

xpl 2 mm

No.154

2065

Mca schist (porphyroblast Bt)

West Water, near Glenesk

Bt zone

ppl 5 mm

xpl 5 mm

Needle-y matrix

ppl 2 mm

xpl 2 mm

ppl 2 mm

ppl 2 mm

xpl 2 mm

No.155

41399

Ky-St-Ms schist (with abundant Tur)

West Corrie, West Water, Forfarshire

St zone (at least)

ppl 2 mm

St at the bottom centre, maybe Ky in NE

xpl 2 mm

ppl 5 mm

Yellow St to the right

Chl to the NE

xpl 5 mm

First order orange and pink birefringence

xpl 5 mm

ppl 5 mm

xpl 5 mm

Mca pseudomorphs after aluminous phases

ppl 2 mm

xpl 2 mm

Inclined extinction

xpl 2 mm

1st order orange birefringence

No.156

41400

St-Mca schist (shimmer aggregate)

Adkinear Burn, West Water

St zone

ppl 2 mm

Bt → Chl retrogression

xpl 2 mm

[Very smooth-looking Qz]

ppl 5 mm

xpl 5 mm

No.157

36228

Chl schist

Between Middle and Upper Falls of Moness, Aberfeldy

ppl 5 mm

xpl 5 mm

ppl 2 mm

xpl 2 mm

No.158

38593

(Ms-Bt-)Chl-Ep-Ab schist

1 m NE of Stank, Loch Lubnaig

ppl 2 mm

xpl 2 mm

ppl 5 mm

xpl 5 mm

xpl 2 mm

xpl 2 mm

No.159

32891

Grt-iferous Mca schist (chloritised)

Shian Burn, near Loch Freuchie, WNW of Amulree

Grt zone

ppl 5 mm

xpl 5 mm

No.160

11941

Grt-iferous Mca schist

Near Duncroisk, Glen Lochay

Grt zone

ppl 5 mm

xpl 5 mm

ppl 5 mm

xpl 5 mm

ppl 2 mm

xpl 2 mm

No.161

88869

Ms-Bt granulite (Elide schist (Grt zone))

W of Kinlochleven

Bt zone

ppl 0.5 mm

Hexagonal accessory

xpl 0.5 mm

ppl 5 mm

xpl 5 mm

Qz-rich

ppl 2 mm

Aligned Bt

xpl 2 mm

No.162

88901

Qz-Mcc-Pl-Bt granulite (Moine)? (Schist (Ky-Sil zone))

N end of Loch Laggan

Bt zone

ppl 5 mm

xpl 5 mm

ppl 2 mm

xpl 2 mm

No.163

11897

Ab-Grt-Mca gneiss

Roadside, E end of Loch Dochart

Grt zone

ppl 2 mm

Grt surrounded by Bt & Chl

xpl 2 mm

ppl 5 mm

xpl 5 mm

ppl 0.5 mm

Hexagonal (elongate) accessory: Ap

xpl 0.5 mm

xpl 0.5 mm

Extremely low birefringence

No.164

CD.47

Grt 2-Mca schist

Ross of Mull

St zone

ppl 8 mm

xpl 8 mm

No.165

M00519

Schist

Moines, Ross of Mull

Ky zone

ppl 8 mm

Ky

xpl 8 mm

Simple twin

xpl 2 mm

No.166

25818

Grt-iferous Mca schist

W of Balnahanaid, Glen Lyon

Grt zone

ppl 5 mm

xpl 5 mm

ppl 2 mm

xpl 2 mm

Grt → Chl

ppl 5 mm

xpl 5 mm

slide

Quadrants in And

slide

ppl 5 mm

And (Gr being pushed to the edges; square cross-section)

xpl 5 mm

xpl 5 mm

Sensitive tint

No.167

19919

Chl-sericite schist

E of pier, Port Bannatyne, Rothesay

Chl zone

ppl 2 mm

xpl 2 mm

Ms → Chl partial pseudomorphs

No.168

27977

Crd-And-Ms-Mcc-Qz rock

Buck of Cabrach, NE of Gl. Buchat

Sil zone

ppl 5 mm

V perfect Ms cleavage

xpl 5 mm

ppl 2 mm

xpl 2 mm

Very low grey birefringence (central blocky grain)

ppl 1 mm

xpl 1 mm

ppl 2 mm

Yellow pleochroic halos (Crd)

xpl 2 mm

ppl 0.5 mm

Sillimanite

xpl 0.5 mm

ppl 2 mm

Fibrolite (centre)

xpl 2 mm

ppl 2 mm

xpl 2 mm

Pl (centre) & Kfs (tartan twinning)

ppl 1 mm

xpl 1 mm

Pinite alteration of Crd

ppl 5 mm

xpl 5 mm

xpl 5 mm

With sensitive tint

Length fast (probably And)

ppl 5 mm

xpl 5 mm

xpl 5 mm

Sensitive tint

ppl 2 mm

ppl 2 mm

Yellow pleochroic haloes in Crd

xpl 2 mm

No.169

11910

Calc-Ep-Bt schist

Eas a' Ghaill, 3 m E of Dalmally

Bt zone

ppl 2 mm

Bt (khaki) → Chl (blue-green)

Yellow alteration at bottom

xpl 2 mm

ppl 2 mm

CaCO₃

ppl 2 mm

Dramatic change in relief upon rotating the stage

xpl 2 mm

ppl 1 mm

Amp ? (~56° cleavage)

xpl 1 mm

ppl 1 mm

xpl 1 mm

ppl 0.5 mm

(~56° cleavage)

xpl 0.5 mm

No.170

92526

Unaltered Ms-Chl-Qz-Ab phyllite (? perhaps a little recrystallised Bt)

N 6.5' from contact with camptonite dyke. Sailean Sligenach, Ardmucknish, near Oban, Argyllshire

Chl zone

ppl 5 mm

xpl 5 mm

Foliated Qz

ppl 5 mm

xpl 5 mm

No.171

30210

Crd-(Crn-)Spl-Bt schist (with lit-par-lit injection from pegmatite)

Loch Avich road, Kilmelford

Crd zone

ppl 5 mm

xpl 5 mm

ppl 2 mm

xpl 2 mm

Ep (bright pink) & Czo (lower biref, e.g., pale yellow)

xpl 2 mm

No.172

15584

Bt (chloritised)-Ms hornfels (xenol. in diorite)

Allt Mhein, N of Ardeonaig, L. Tay

Bt zone

ppl 5 mm

xpl 5 mm

Suspiciously localised Ms

ppl 5 mm

xpl 5 mm

No.173

46403

Qz-Bt hornfels

W of Allt Carnach, Glen Shee

Bt zone

ppl 2 mm

xpl 2 mm

Bt & Chl (?)

ppl 5 mm

xpl 5 mm

No.174

37748

Sil-Pleonaste-Crd hornfels (xenolith in Duchray Hill Gneiss)

N of Loch Shechernich, Glen Shee

Sil zone

ppl 2 mm

xpl 2 mm

Prismatic Sil

ppl 5 mm

xpl 5 mm

No.175

26838

Grt-Bt granulite (metamorphosed and with much white Mca)

Near contact with Qz-diorite, Netherley

Grt zone

ppl 5 mm

xpl 5 mm

ppl 5 mm

xpl 5 mm

ppl 5 mm

xpl 5 mm