Dim Intent1 As Intent
Dim label_name As String = "Marker label name"
Dim URI As String = "geo:" & lat & "," & lng & "?q=" & lat & "," & lng & "(" & label_name & ")"
Intent1.Initialize(Intent1.ACTION_VIEW,URI)
Intent1.SetComponent("com.google.android.apps.maps")
StartActivity(Intent1)