Jagged Array (non Variant) possible in VB6?

[Milk]

I'm no pro programmer but I have never come across the term 'jagged array' until now. As far as I can tell it's an array of arrays which you could create in VB6 with a UDT.

Option Explicit
Private Type tDblArray
   Arr() As Double
End Type

Private Sub Form_Load()
Dim D() As tDblArray
   ReDim D(2)
   
   ReDim D(0).Arr(1)
   D(0).Arr(0) = 1.23456
   D(0).Arr(1) = 2
   
   ReDim D(2).Arr(3)
   D(2).Arr(0) = 1
   D(2).Arr(1) = 2
   D(2).Arr(2) = 3.45678
End Sub

I think it fits the brief of being jagged but I doubt the structure in memory will be the same, maybe worth a shot though.

Can a Jagged array hold multiple data types or just one? Is it possible to alter the dimensions of a jagged array once declared?