Rock.

Ticklists again. I love/hate ticklists. Hate the ones that are herd-following obvious commercial Here Is A Book Full Of So-Called Essential Routes this is what you must tick lists. Love the ones that are obscure and quirky and have a distinctive theme and get you going to places you wouldn't otherwise go and doing things you wouldn't otherwise consider.

Something I've know for a long time is that I'm fascinated by different rock types - the aesthetics, the formations, the textures, the feel, the way they lend themselves to climbing, the diversity, the curiosity (especially of "WTF is this"-type rocks). Something I've realised recently is that I'm amassing a fairly respectable ticklist of different rock types, and am still enjoying it as much as ever, climbing on new ones.

In this country we are cursed by the weather and crowded roads, and blessed by the equally the best trad in the world (along with America) and by a phenomenal variety of rock crammed into a fairly accessible area. Just consider North Wales or the Lakes, each of which with a half-dozen major rock types within an hour's drive of each other. So here is my list, in true bumbling non-geologist style, from South-West to North-East:

Limestone (Torbay, also everywhere)

Limestone, Quarried (Torbay, also everywhere)

Shale (Bantham Hand)

Amphibiolite (Lizard)

Granite (West Penwith, many other places)

Granite, Quarried (Cheesewring, etc)

Killas Slate (Carn Kendijack)

Greenstone (St Gurnard's Head, Carn Gowla?)

Pilau Lava (Doyden Point, Pentire Point)

Culm Sandstone (Compass Point, Lower Sharpnose, etc)

Oolitic Limestone (Ham Hill Quarry)

Sandstone, Quarried (South Wales, also Pex, etc)

Arennig Gritstone (Rhinnogs)

Ignimbrite (Craig Y Mwn, also in Lakes?)

Gabbro (Porth Ysgo, Carrock Fell, western scotland etc)

Shale/Sandstone (Craig Doris)

Shale/Arennig Grit (Cilan Head)

Gwyna Melange (Twyn Maer Maen)

Meta-Dolerite (Pen-Y-Cil)

Dolerite (Tremadog)

Felsite (Carreg Hyll Drem, also Falcon Crags??)

Rhyolite (Dinas Cromlech, many other places)

Slate, Quarried (Dinorwic Slate, also Lakes Slate)

Quartzite (Gogarth, Rhoscolyn)

Sandstone (Helsby, also Northumberland and everywhere)

Hornstone (Beacon Hill)

Magnesian Limestone (Harborough, Brassington)

Gritstone (Roaches, Stanage, and everywhere)

Quarried Grit (Wiltons, Millstone, and elsewhere)

Coal Measure Sandstone (Wharncliffe)

Conglomerate (The Hoff)

Andesite (Borrowdale, Lakes in general)

Whinstone (Peel Crag, Crag Lough)

Greywacke (Meikle Ross, Portobello, all Stranraer area)

Micro-Granite (Llagantalluch, Crammag Head)

Basalt (Dumbarton, Central Belt Quarries)

Trachyte (Trapain Law)

Mica Schist (Dunkeld, Substation Crag, Glen Nevis and all Scotland)

Schist (???)

Gneiss (Diabaig, Loch Tolldaih, Sheigra)

Torridon Sandstone (Torridon)

Old Red Sandstone (Am Buchaille)

Anyone got any more for me to try??