Which preposition to use with stalactites

of Occurrences 10%

Epicures rub the lips of the tumbler with a piece of fresh pineapple; and the tumbler itself is very often encrusted outside with stalactites of ice.

in Occurrences 4%

These were all in the water, in waiting for the disappearance of the ice; which was now reduced to a mass of stalactites in form, greenish and sombre in hue, as they floated in a body, but clear and bright when separated and exposed to the sun.

about Occurrences 1%

Beneath, but still in the roof of the cavern, is another circular excavation resembling an immense helmet, which seems to be lined with rich satin, and is fringed with rows of yellow stalactite about the edges.

below Occurrences 1%

Seated in the chimney-corner after dinner, and sending the smoke of my pipe to join the sparks of the blazing wood up the yawning gulf where the soot hung like stalactites below the calm sky and twinkling stars, I had a long talk with the aubergiste, who told me that he had been taken prisoner at Sedan, and had, in consequence, spent eight months in Germany.

Which preposition to use with  stalactites